diff --git a/CodeGenerator/codegenerator.h b/CodeGenerator/codegenerator.h
index 2b28078..838e056 100644
--- a/CodeGenerator/codegenerator.h
+++ b/CodeGenerator/codegenerator.h
@@ -146,6 +146,8 @@ public:
         _QColor,
         _QVariant,
         _QPolygonF,
+        _QDateTime,
+        _QLocale,
         _TextAnnotationIcon,
         _LinkHighlightMode,
         _TextAlignment,
diff --git a/PdfExampleGenerator/pdfexamplesgenerator.cpp b/PdfExampleGenerator/pdfexamplesgenerator.cpp
index df91b5e..9a41edc 100644
--- a/PdfExampleGenerator/pdfexamplesgenerator.cpp
+++ b/PdfExampleGenerator/pdfexamplesgenerator.cpp
@@ -20,9 +20,16 @@
 #include "pdfdocumentbuilder.h"
 #include "pdfdocumentwriter.h"
 
+#include <QCoreApplication>
+
 void PDFExamplesGenerator::generateAnnotationsExample()
 {
     pdf::PDFDocumentBuilder builder;
+    builder.setDocumentTitle("Test document");
+    builder.setDocumentAuthor("Jakub Melka");
+    builder.setDocumentCreator(QCoreApplication::applicationName());
+    builder.setDocumentSubject("Testing annotations");
+    builder.setLanguage(QLocale::system());
 
     pdf::PDFObjectReference page1 = builder.appendPage(QRectF(0, 0, 400, 400));
     builder.createAnnotationText(page1, QRectF(50,  50, 24, 24), pdf::TextAnnotationIcon::Comment, "Title1", "Subject1", "Comment", false);
diff --git a/PdfForQtLib/sources/pdfdocumentbuilder.cpp b/PdfForQtLib/sources/pdfdocumentbuilder.cpp
index 1481ba5..02f5327 100644
--- a/PdfForQtLib/sources/pdfdocumentbuilder.cpp
+++ b/PdfForQtLib/sources/pdfdocumentbuilder.cpp
@@ -64,6 +64,12 @@ void PDFObjectFactory::endDictionaryItem()
     std::get<PDFDictionary>(dictionaryItem.object).addEntry(qMove(topItem.itemName), qMove(std::get<PDFObject>(topItem.object)));
 }
 
+PDFObjectFactory& PDFObjectFactory::operator<<(const QDateTime& dateTime)
+{
+    addObject(PDFObject::createString(std::make_shared<PDFString>(PDFEncoding::converDateTimeToString(dateTime))));
+    return *this;
+}
+
 PDFObjectFactory& PDFObjectFactory::operator<<(const QPointF& point)
 {
     *this << point.x();
@@ -497,6 +503,56 @@ PDFInteger PDFDocumentBuilder::getPageTreeRootChildCount() const
     return 0;
 }
 
+PDFObjectReference PDFDocumentBuilder::getDocumentInfo() const
+{
+    if (const PDFDictionary* trailerDictionary = getDictionaryFromObject(m_storage.getTrailerDictionary()))
+    {
+        PDFObject object = trailerDictionary->get("Info");
+        if (object.isReference())
+        {
+            return object.getReference();
+        }
+    }
+
+    return PDFObjectReference();
+}
+
+PDFObjectReference PDFDocumentBuilder::getCatalogReference() const
+{
+    if (const PDFDictionary* trailerDictionary = getDictionaryFromObject(m_storage.getTrailerDictionary()))
+    {
+        PDFObject object = trailerDictionary->get("Root");
+        if (object.isReference())
+        {
+            return object.getReference();
+        }
+    }
+
+    return PDFObjectReference();
+}
+
+void PDFDocumentBuilder::updateDocumentInfo(PDFObject info)
+{
+    PDFObjectReference infoReference = getDocumentInfo();
+    if (!infoReference.isValid())
+    {
+        PDFObjectFactory objectFactory;
+        objectFactory.beginDictionary();
+        objectFactory.endDictionary();
+        infoReference = addObject(objectFactory.takeObject());
+
+        // Update the trailer dictionary
+        objectFactory.beginDictionary();
+        objectFactory.beginDictionaryItem("Info");
+        objectFactory << infoReference;
+        objectFactory.endDictionaryItem();
+        objectFactory.endDictionary();
+        m_storage.updateTrailerDictionary(objectFactory.takeObject());
+    }
+
+    mergeTo(infoReference, info);
+}
+
 /* START GENERATED CODE */
 
 PDFObjectReference PDFDocumentBuilder::appendPage(QRectF mediaBox)
@@ -1819,14 +1875,6 @@ PDFObject PDFDocumentBuilder::createTrailerDictionary(PDFObjectReference catalog
 {
     PDFObjectFactory objectBuilder;
 
-    objectBuilder.beginDictionary();
-    objectBuilder.beginDictionaryItem("Size");
-    objectBuilder << 1;
-    objectBuilder.endDictionaryItem();
-    objectBuilder.beginDictionaryItem("Root");
-    objectBuilder << catalog;
-    objectBuilder.endDictionaryItem();
-    objectBuilder.beginDictionaryItem("Info");
     objectBuilder.beginDictionary();
     objectBuilder.beginDictionaryItem("Producer");
     objectBuilder << getProducerString();
@@ -1838,6 +1886,16 @@ PDFObject PDFDocumentBuilder::createTrailerDictionary(PDFObjectReference catalog
     objectBuilder << WrapCurrentDateTime();
     objectBuilder.endDictionaryItem();
     objectBuilder.endDictionary();
+    PDFObjectReference infoDictionary = addObject(objectBuilder.takeObject());
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Size");
+    objectBuilder << 1;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.beginDictionaryItem("Root");
+    objectBuilder << catalog;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.beginDictionaryItem("Info");
+    objectBuilder << infoDictionary;
     objectBuilder.endDictionaryItem();
     objectBuilder.endDictionary();
     PDFObject trailerDictionary = objectBuilder.takeObject();
@@ -1845,6 +1903,126 @@ PDFObject PDFDocumentBuilder::createTrailerDictionary(PDFObjectReference catalog
 }
 
 
+void PDFDocumentBuilder::setDocumentAuthor(QString author)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Author");
+    objectBuilder << author;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject info = objectBuilder.takeObject();
+    updateDocumentInfo(qMove(info));
+}
+
+
+void PDFDocumentBuilder::setDocumentCreationDate(QDateTime creationDate)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("CreationDate");
+    objectBuilder << creationDate;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject info = objectBuilder.takeObject();
+    updateDocumentInfo(qMove(info));
+}
+
+
+void PDFDocumentBuilder::setDocumentCreator(QString creator)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Creator");
+    objectBuilder << creator;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject info = objectBuilder.takeObject();
+    updateDocumentInfo(qMove(info));
+}
+
+
+void PDFDocumentBuilder::setDocumentKeywords(QString keywords)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Keywords");
+    objectBuilder << keywords;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject info = objectBuilder.takeObject();
+    updateDocumentInfo(qMove(info));
+}
+
+
+void PDFDocumentBuilder::setDocumentProducer(QString producer)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Producer");
+    objectBuilder << producer;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject info = objectBuilder.takeObject();
+    updateDocumentInfo(qMove(info));
+}
+
+
+void PDFDocumentBuilder::setDocumentSubject(QString subject)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Subject");
+    objectBuilder << subject;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject info = objectBuilder.takeObject();
+    updateDocumentInfo(qMove(info));
+}
+
+
+void PDFDocumentBuilder::setDocumentTitle(QString title)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Title");
+    objectBuilder << title;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject info = objectBuilder.takeObject();
+    updateDocumentInfo(qMove(info));
+}
+
+
+void PDFDocumentBuilder::setLanguage(QString language)
+{
+    PDFObjectFactory objectBuilder;
+
+    objectBuilder.beginDictionary();
+    objectBuilder.beginDictionaryItem("Lang");
+    objectBuilder << language;
+    objectBuilder.endDictionaryItem();
+    objectBuilder.endDictionary();
+    PDFObject updatedCatalog = objectBuilder.takeObject();
+    mergeTo(getCatalogReference(), updatedCatalog);
+}
+
+
+void PDFDocumentBuilder::setLanguage(QLocale locale)
+{
+    PDFObjectFactory objectBuilder;
+
+    setLanguage(locale.name());
+}
+
+
 void PDFDocumentBuilder::updateTrailerDictionary(PDFInteger objectCount)
 {
     PDFObjectFactory objectBuilder;
@@ -1853,7 +2031,8 @@ void PDFDocumentBuilder::updateTrailerDictionary(PDFInteger objectCount)
     objectBuilder.beginDictionaryItem("Size");
     objectBuilder << objectCount;
     objectBuilder.endDictionaryItem();
-    objectBuilder.beginDictionaryItem("Info");
+    objectBuilder.endDictionary();
+    PDFObject trailerDictionary = objectBuilder.takeObject();
     objectBuilder.beginDictionary();
     objectBuilder.beginDictionaryItem("Producer");
     objectBuilder << getProducerString();
@@ -1862,10 +2041,9 @@ void PDFDocumentBuilder::updateTrailerDictionary(PDFInteger objectCount)
     objectBuilder << WrapCurrentDateTime();
     objectBuilder.endDictionaryItem();
     objectBuilder.endDictionary();
-    objectBuilder.endDictionaryItem();
-    objectBuilder.endDictionary();
-    PDFObject trailerDictionary = objectBuilder.takeObject();
+    PDFObject updatedInfoDictionary = objectBuilder.takeObject();
     m_storage.updateTrailerDictionary(qMove(trailerDictionary));
+    updateDocumentInfo(qMove(updatedInfoDictionary));
 }
 
 
diff --git a/PdfForQtLib/sources/pdfdocumentbuilder.h b/PdfForQtLib/sources/pdfdocumentbuilder.h
index f647d48..06bdfe4 100644
--- a/PdfForQtLib/sources/pdfdocumentbuilder.h
+++ b/PdfForQtLib/sources/pdfdocumentbuilder.h
@@ -106,6 +106,7 @@ public:
     PDFObjectFactory& operator<<(WrapString string);
     PDFObjectFactory& operator<<(AnnotationLineEnding lineEnding);
     PDFObjectFactory& operator<<(const QPointF& point);
+    PDFObjectFactory& operator<<(const QDateTime& dateTime);
 
     /// Treat containers - write them as array
     template<typename Container, typename ValueType = decltype(*std::begin(std::declval<Container>()))>
@@ -616,6 +617,53 @@ public:
     PDFObject createTrailerDictionary(PDFObjectReference catalog);
 
 
+    /// Set document author.
+    /// \param author Author
+    void setDocumentAuthor(QString author);
+
+
+    /// Set document creation date.
+    /// \param creationDate Creation date/time
+    void setDocumentCreationDate(QDateTime creationDate);
+
+
+    /// Set document creator.
+    /// \param creator Creator
+    void setDocumentCreator(QString creator);
+
+
+    /// Set document keywords.
+    /// \param keywords Keywords
+    void setDocumentKeywords(QString keywords);
+
+
+    /// Set document producer.
+    /// \param producer Producer
+    void setDocumentProducer(QString producer);
+
+
+    /// Set document subject.
+    /// \param subject Subject
+    void setDocumentSubject(QString subject);
+
+
+    /// Set document title.
+    /// \param title Title
+    void setDocumentTitle(QString title);
+
+
+    /// Set document language.
+    /// \param language Document language. It should be a language identifier, as defined in ISO 639 
+    ///        and ISO 3166. For example, "en-US", where first two letter means language code (en = 
+    ///        english), and the latter two is country code (US - United States).
+    void setLanguage(QString language);
+
+
+    /// Set document language.
+    /// \param locale Locale, from which is language determined
+    void setLanguage(QLocale locale);
+
+
     /// This function is used to update trailer dictionary. Must be called each time the final document is 
     /// being built.
     /// \param objectCount Number of objects (including empty ones)
@@ -632,6 +680,9 @@ private:
     QString getProducerString() const;
     PDFObjectReference getPageTreeRoot() const;
     PDFInteger getPageTreeRootChildCount() const;
+    PDFObjectReference getDocumentInfo() const;
+    PDFObjectReference getCatalogReference() const;
+    void updateDocumentInfo(PDFObject info);
 
     PDFObjectStorage m_storage;
     PDFVersion m_version;
diff --git a/generated_code_definition.xml b/generated_code_definition.xml
index a83c741..8e18ace 100644
--- a/generated_code_definition.xml
+++ b/generated_code_definition.xml
@@ -4396,6 +4396,44 @@ return annotationObject;</property>
           <property name="variableType">_void</property>
           <property name="code"></property>
         </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Producer</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">getProducerString()</property>
+                </QObject>
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">CreationDate</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">WrapCurrentDateTime()</property>
+                </QObject>
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">ModDate</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">WrapCurrentDateTime()</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">infoDictionary</property>
+          <property name="variableType">_PDFObjectReference</property>
+          <property name="code"></property>
+        </QObject>
         <QObject class="codegen::GeneratedAction">
           <property name="objectName"></property>
           <property name="items">
@@ -4418,40 +4456,10 @@ return annotationObject;</property>
                 </QObject>
                 <QObject class="codegen::GeneratedPDFObject">
                   <property name="objectName"></property>
-                  <property name="items">
-                    <QObject class="codegen::GeneratedPDFObject">
-                      <property name="objectName"></property>
-                      <property name="items">
-                        <QObject class="codegen::GeneratedPDFObject">
-                          <property name="objectName"></property>
-                          <property name="items"/>
-                          <property name="dictionaryItemName">Producer</property>
-                          <property name="objectType">DictionaryItemSimple</property>
-                          <property name="value">getProducerString()</property>
-                        </QObject>
-                        <QObject class="codegen::GeneratedPDFObject">
-                          <property name="objectName"></property>
-                          <property name="items"/>
-                          <property name="dictionaryItemName">CreationDate</property>
-                          <property name="objectType">DictionaryItemSimple</property>
-                          <property name="value">WrapCurrentDateTime()</property>
-                        </QObject>
-                        <QObject class="codegen::GeneratedPDFObject">
-                          <property name="objectName"></property>
-                          <property name="items"/>
-                          <property name="dictionaryItemName">ModDate</property>
-                          <property name="objectType">DictionaryItemSimple</property>
-                          <property name="value">WrapCurrentDateTime()</property>
-                        </QObject>
-                      </property>
-                      <property name="dictionaryItemName"></property>
-                      <property name="objectType">Dictionary</property>
-                      <property name="value"></property>
-                    </QObject>
-                  </property>
+                  <property name="items"/>
                   <property name="dictionaryItemName">Info</property>
-                  <property name="objectType">DictionaryItemComplex</property>
-                  <property name="value"></property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">infoDictionary</property>
                 </QObject>
               </property>
               <property name="dictionaryItemName"></property>
@@ -4478,6 +4486,495 @@ return annotationObject;</property>
       <property name="functionDescription">This function is used to create a new trailer dictionary, when blank document is created. Do not call this function manually.</property>
       <property name="returnType">_PDFObject</property>
     </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">author</property>
+              <property name="parameterType">_QString</property>
+              <property name="parameterDescription">Author</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Author</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">author</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">info</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">updateDocumentInfo(qMove(info));</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setDocumentAuthor</property>
+      <property name="functionDescription">Set document author.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">creationDate</property>
+              <property name="parameterType">_QDateTime</property>
+              <property name="parameterDescription">Creation date/time</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">CreationDate</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">creationDate</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">info</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">updateDocumentInfo(qMove(info));</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setDocumentCreationDate</property>
+      <property name="functionDescription">Set document creation date.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">creator</property>
+              <property name="parameterType">_QString</property>
+              <property name="parameterDescription">Creator</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Creator</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">creator</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">info</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">updateDocumentInfo(qMove(info));</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setDocumentCreator</property>
+      <property name="functionDescription">Set document creator.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">keywords</property>
+              <property name="parameterType">_QString</property>
+              <property name="parameterDescription">Keywords</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Keywords</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">keywords</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">info</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">updateDocumentInfo(qMove(info));</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setDocumentKeywords</property>
+      <property name="functionDescription">Set document keywords.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">producer</property>
+              <property name="parameterType">_QString</property>
+              <property name="parameterDescription">Producer</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Producer</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">producer</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">info</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">updateDocumentInfo(qMove(info));</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setDocumentProducer</property>
+      <property name="functionDescription">Set document producer.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">subject</property>
+              <property name="parameterType">_QString</property>
+              <property name="parameterDescription">Subject</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Subject</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">subject</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">info</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">updateDocumentInfo(qMove(info));</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setDocumentSubject</property>
+      <property name="functionDescription">Set document subject.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">title</property>
+              <property name="parameterType">_QString</property>
+              <property name="parameterDescription">Title</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Title</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">title</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">info</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">updateDocumentInfo(qMove(info));</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setDocumentTitle</property>
+      <property name="functionDescription">Set document title.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">language</property>
+              <property name="parameterType">_QString</property>
+              <property name="parameterDescription">Document language. It should be a language identifier, as defined in ISO 639 and ISO 3166. For example, "en-US", where first two letter means language code (en = english), and the latter two is country code (US - United States).</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Lang</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">language</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">updatedCatalog</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">mergeTo(getCatalogReference(), updatedCatalog);</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setLanguage</property>
+      <property name="functionDescription">Set document language.</property>
+      <property name="returnType">_void</property>
+    </QObject>
+    <QObject class="codegen::GeneratedFunction">
+      <property name="objectName"></property>
+      <property name="items">
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedParameter">
+              <property name="objectName"></property>
+              <property name="items"/>
+              <property name="parameterName">locale</property>
+              <property name="parameterType">_QLocale</property>
+              <property name="parameterDescription">Locale, from which is language determined</property>
+            </QObject>
+          </property>
+          <property name="actionType">Parameters</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code"></property>
+        </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items"/>
+          <property name="actionType">Code</property>
+          <property name="variableName"></property>
+          <property name="variableType">_void</property>
+          <property name="code">setLanguage(locale.name());</property>
+        </QObject>
+      </property>
+      <property name="functionType">Structure</property>
+      <property name="functionName">setLanguage</property>
+      <property name="functionDescription">Set document language.</property>
+      <property name="returnType">_void</property>
+    </QObject>
     <QObject class="codegen::GeneratedFunction">
       <property name="objectName"></property>
       <property name="items">
@@ -4510,36 +5007,6 @@ return annotationObject;</property>
                   <property name="objectType">DictionaryItemSimple</property>
                   <property name="value">objectCount</property>
                 </QObject>
-                <QObject class="codegen::GeneratedPDFObject">
-                  <property name="objectName"></property>
-                  <property name="items">
-                    <QObject class="codegen::GeneratedPDFObject">
-                      <property name="objectName"></property>
-                      <property name="items">
-                        <QObject class="codegen::GeneratedPDFObject">
-                          <property name="objectName"></property>
-                          <property name="items"/>
-                          <property name="dictionaryItemName">Producer</property>
-                          <property name="objectType">DictionaryItemSimple</property>
-                          <property name="value">getProducerString()</property>
-                        </QObject>
-                        <QObject class="codegen::GeneratedPDFObject">
-                          <property name="objectName"></property>
-                          <property name="items"/>
-                          <property name="dictionaryItemName">ModDate</property>
-                          <property name="objectType">DictionaryItemSimple</property>
-                          <property name="value">WrapCurrentDateTime()</property>
-                        </QObject>
-                      </property>
-                      <property name="dictionaryItemName"></property>
-                      <property name="objectType">Dictionary</property>
-                      <property name="value"></property>
-                    </QObject>
-                  </property>
-                  <property name="dictionaryItemName">Info</property>
-                  <property name="objectType">DictionaryItemComplex</property>
-                  <property name="value"></property>
-                </QObject>
               </property>
               <property name="dictionaryItemName"></property>
               <property name="objectType">Dictionary</property>
@@ -4551,13 +5018,45 @@ return annotationObject;</property>
           <property name="variableType">_PDFObject</property>
           <property name="code"></property>
         </QObject>
+        <QObject class="codegen::GeneratedAction">
+          <property name="objectName"></property>
+          <property name="items">
+            <QObject class="codegen::GeneratedPDFObject">
+              <property name="objectName"></property>
+              <property name="items">
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">Producer</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">getProducerString()</property>
+                </QObject>
+                <QObject class="codegen::GeneratedPDFObject">
+                  <property name="objectName"></property>
+                  <property name="items"/>
+                  <property name="dictionaryItemName">ModDate</property>
+                  <property name="objectType">DictionaryItemSimple</property>
+                  <property name="value">WrapCurrentDateTime()</property>
+                </QObject>
+              </property>
+              <property name="dictionaryItemName"></property>
+              <property name="objectType">Dictionary</property>
+              <property name="value"></property>
+            </QObject>
+          </property>
+          <property name="actionType">CreateObject</property>
+          <property name="variableName">updatedInfoDictionary</property>
+          <property name="variableType">_PDFObject</property>
+          <property name="code"></property>
+        </QObject>
         <QObject class="codegen::GeneratedAction">
           <property name="objectName"></property>
           <property name="items"/>
           <property name="actionType">Code</property>
           <property name="variableName"></property>
           <property name="variableType">_void</property>
-          <property name="code">m_storage.updateTrailerDictionary(qMove(trailerDictionary));</property>
+          <property name="code">m_storage.updateTrailerDictionary(qMove(trailerDictionary));
+updateDocumentInfo(qMove(updatedInfoDictionary));</property>
         </QObject>
       </property>
       <property name="functionType">Structure</property>