Dialog for pdf image rendering

PdfForQtViewer/PdfForQtViewer.pro

@@ -38,6 +38,7 @@ SOURCES += \
         pdfadvancedfindwidget.cpp \
         pdfdocumentpropertiesdialog.cpp \
         pdfrecentfilemanager.cpp \
+        pdfrendertoimagesdialog.cpp \
         pdfsendmail.cpp \
         pdfsidebarwidget.cpp \
         pdfviewermainwindow.cpp \
@@ -50,6 +51,7 @@ HEADERS += \
         pdfadvancedfindwidget.h \
         pdfdocumentpropertiesdialog.h \
         pdfrecentfilemanager.h \
+        pdfrendertoimagesdialog.h \
         pdfsendmail.h \
         pdfsidebarwidget.h \
         pdfviewermainwindow.h \
@@ -61,6 +63,7 @@ FORMS += \
         pdfaboutdialog.ui \
         pdfadvancedfindwidget.ui \
         pdfdocumentpropertiesdialog.ui \
+        pdfrendertoimagesdialog.ui \
         pdfsidebarwidget.ui \
         pdfviewermainwindow.ui \
         pdfviewersettingsdialog.ui

PdfForQtViewer/pdfrendertoimagesdialog.cpp

@@ -0,0 +1,233 @@
+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "pdfrendertoimagesdialog.h"
+#include "ui_pdfrendertoimagesdialog.h"
+
+#include "pdfutils.h"
+#include "pdfwidgetutils.h"
+
+#include <QFileDialog>
+
+namespace pdfviewer
+{
+
+PDFRenderToImagesDialog::PDFRenderToImagesDialog(QWidget* parent) :
+    QDialog(parent),
+    ui(new Ui::PDFRenderToImagesDialog),
+    m_isLoadingData(false)
+{
+    ui->setupUi(this);
+
+    // Load image formats
+    for (const QByteArray& format : m_imageWriterSettings.getFormats())
+    {
+        ui->formatComboBox->addItem(QString::fromLatin1(format), format);
+    }
+
+    connect(ui->pagesAllButton, &QRadioButton::clicked, this, &PDFRenderToImagesDialog::onPagesButtonClicked);
+    connect(ui->pagesSelectButton, &QRadioButton::clicked, this, &PDFRenderToImagesDialog::onPagesButtonClicked);
+    connect(ui->selectedPagesEdit, &QLineEdit::textChanged, this, &PDFRenderToImagesDialog::onSelectedPagesChanged);
+    connect(ui->directoryEdit, &QLineEdit::textChanged, this, &PDFRenderToImagesDialog::onDirectoryChanged);
+    connect(ui->fileTemplateEdit, &QLineEdit::textChanged, this, &PDFRenderToImagesDialog::onFileTemplateChanged);
+    connect(ui->resolutionDPIButton, &QRadioButton::clicked, this, &PDFRenderToImagesDialog::onResolutionButtonClicked);
+    connect(ui->resolutionPixelsButton, &QRadioButton::clicked, this, &PDFRenderToImagesDialog::onResolutionButtonClicked);
+    connect(ui->resolutionDPIEdit, QOverload<int>::of(&QSpinBox::valueChanged), this, &PDFRenderToImagesDialog::onResolutionDPIChanged);
+    connect(ui->resolutionPixelsEdit, QOverload<int>::of(&QSpinBox::valueChanged), this, &PDFRenderToImagesDialog::onResolutionPixelsChanged);
+    connect(ui->formatComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &PDFRenderToImagesDialog::onFormatChanged);
+    connect(ui->subtypeComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &PDFRenderToImagesDialog::onSubtypeChanged);
+    connect(ui->compressionEdit, QOverload<int>::of(&QSpinBox::valueChanged), this, &PDFRenderToImagesDialog::onCompressionChanged);
+    connect(ui->qualityEdit, QOverload<int>::of(&QSpinBox::valueChanged), this, &PDFRenderToImagesDialog::onQualityChanged);
+    connect(ui->gammaEdit, QOverload<double>::of(&QDoubleSpinBox::valueChanged), this, &PDFRenderToImagesDialog::onGammaChanged);
+    connect(ui->optimizedWriteCheckBox, &QCheckBox::clicked, this, &PDFRenderToImagesDialog::onOptimizedWriteChanged);
+    connect(ui->progressiveScanWriteCheckBox, &QCheckBox::clicked, this, &PDFRenderToImagesDialog::onProgressiveScanWriteChanged);
+
+    loadImageWriterSettings();
+    loadImageExportSettings();
+
+    PDFWidgetUtils::scaleWidget(this, QSize(1000, 600));
+}
+
+PDFRenderToImagesDialog::~PDFRenderToImagesDialog()
+{
+    delete ui;
+}
+
+void PDFRenderToImagesDialog::loadImageWriterSettings()
+{
+    if (m_isLoadingData)
+    {
+        return;
+    }
+
+    pdf::PDFTemporaryValueChange guard(&m_isLoadingData, true);
+    ui->formatComboBox->setCurrentIndex(ui->formatComboBox->findData(m_imageWriterSettings.getCurrentFormat()));
+
+    ui->subtypeComboBox->setUpdatesEnabled(false);
+    ui->subtypeComboBox->clear();
+    for (const QByteArray& subtype : m_imageWriterSettings.getSubtypes())
+    {
+        ui->subtypeComboBox->addItem(QString::fromLatin1(subtype), subtype);
+    }
+    ui->subtypeComboBox->setCurrentIndex(ui->subtypeComboBox->findData(m_imageWriterSettings.getCurrentSubtype()));
+    ui->subtypeComboBox->setUpdatesEnabled(true);
+
+    ui->compressionEdit->setValue(m_imageWriterSettings.getCompression());
+    ui->qualityEdit->setValue(m_imageWriterSettings.getQuality());
+    ui->gammaEdit->setValue(m_imageWriterSettings.getGamma());
+    ui->optimizedWriteCheckBox->setChecked(m_imageWriterSettings.hasOptimizedWrite());
+    ui->progressiveScanWriteCheckBox->setChecked(m_imageWriterSettings.hasProgressiveScanWrite());
+
+    ui->subtypeComboBox->setEnabled(m_imageWriterSettings.isOptionSupported(QImageIOHandler::SupportedSubTypes));
+    ui->compressionEdit->setEnabled(m_imageWriterSettings.isOptionSupported(QImageIOHandler::CompressionRatio));
+    ui->qualityEdit->setEnabled(m_imageWriterSettings.isOptionSupported(QImageIOHandler::Quality));
+    ui->gammaEdit->setEnabled(m_imageWriterSettings.isOptionSupported(QImageIOHandler::Gamma));
+    ui->optimizedWriteCheckBox->setEnabled(m_imageWriterSettings.isOptionSupported(QImageIOHandler::OptimizedWrite));
+    ui->progressiveScanWriteCheckBox->setEnabled(m_imageWriterSettings.isOptionSupported(QImageIOHandler::ProgressiveScanWrite));
+}
+
+void PDFRenderToImagesDialog::loadImageExportSettings()
+{
+    if (m_isLoadingData)
+    {
+        return;
+    }
+
+    pdf::PDFTemporaryValueChange guard(&m_isLoadingData, true);
+
+    const pdf::PDFPageImageExportSettings::PageSelectionMode pageSelectionMode = m_imageExportSettings.getPageSelectionMode();
+    ui->pagesAllButton->setChecked(pageSelectionMode == pdf::PDFPageImageExportSettings::PageSelectionMode::All);
+    ui->pagesSelectButton->setChecked(pageSelectionMode == pdf::PDFPageImageExportSettings::PageSelectionMode::Selection);
+
+    if (pageSelectionMode == pdf::PDFPageImageExportSettings::PageSelectionMode::Selection)
+    {
+        ui->selectedPagesEdit->setEnabled(true);
+        ui->selectedPagesEdit->setText(m_imageExportSettings.getPageSelection());
+    }
+    else
+    {
+        ui->selectedPagesEdit->setEnabled(false);
+        ui->selectedPagesEdit->setText(QString());
+    }
+
+    ui->directoryEdit->setText(m_imageExportSettings.getDirectory());
+    ui->fileTemplateEdit->setText(m_imageExportSettings.getFileTemplate());
+
+    const pdf::PDFPageImageExportSettings::ResolutionMode resolutionMode = m_imageExportSettings.getResolutionMode();
+    ui->resolutionDPIButton->setChecked(resolutionMode == pdf::PDFPageImageExportSettings::ResolutionMode::DPI);
+    ui->resolutionPixelsButton->setChecked(resolutionMode == pdf::PDFPageImageExportSettings::ResolutionMode::Pixels);
+    ui->resolutionDPIEdit->setValue(m_imageExportSettings.getDpiResolution());
+    ui->resolutionPixelsEdit->setValue(m_imageExportSettings.getPixelResolution());
+    ui->resolutionDPIEdit->setEnabled(resolutionMode == pdf::PDFPageImageExportSettings::ResolutionMode::DPI);
+    ui->resolutionPixelsEdit->setEnabled(resolutionMode == pdf::PDFPageImageExportSettings::ResolutionMode::Pixels);
+}
+
+void PDFRenderToImagesDialog::onFormatChanged()
+{
+    m_imageWriterSettings.selectFormat(ui->formatComboBox->currentData().toByteArray());
+    loadImageWriterSettings();
+}
+
+void PDFRenderToImagesDialog::onSubtypeChanged()
+{
+    m_imageWriterSettings.setCurrentSubtype(ui->subtypeComboBox->currentData().toByteArray());
+}
+
+void PDFRenderToImagesDialog::onPagesButtonClicked(bool checked)
+{
+    if (checked)
+    {
+        const pdf::PDFPageImageExportSettings::PageSelectionMode pageSelectionMode = (sender() == ui->pagesAllButton) ? pdf::PDFPageImageExportSettings::PageSelectionMode::All
+                                                                                                                      : pdf::PDFPageImageExportSettings::PageSelectionMode::Selection;
+        m_imageExportSettings.setPageSelectionMode(pageSelectionMode);
+        loadImageExportSettings();
+    }
+}
+
+void PDFRenderToImagesDialog::onSelectedPagesChanged(const QString& text)
+{
+    m_imageExportSettings.setPageSelection(text);
+}
+
+void PDFRenderToImagesDialog::onDirectoryChanged(const QString& text)
+{
+    m_imageExportSettings.setDirectory(text);
+}
+
+void PDFRenderToImagesDialog::onFileTemplateChanged(const QString& text)
+{
+    m_imageExportSettings.setFileTemplate(text);
+}
+
+void PDFRenderToImagesDialog::onResolutionButtonClicked(bool checked)
+{
+    if (checked)
+    {
+        const pdf::PDFPageImageExportSettings::ResolutionMode resolutionMode = (sender() == ui->resolutionDPIButton) ? pdf::PDFPageImageExportSettings::ResolutionMode::DPI
+                                                                                                                     : pdf::PDFPageImageExportSettings::ResolutionMode::Pixels;
+        m_imageExportSettings.setResolutionMode(resolutionMode);
+        loadImageExportSettings();
+    }
+}
+
+void PDFRenderToImagesDialog::onResolutionDPIChanged(int value)
+{
+    m_imageExportSettings.setDpiResolution(value);
+}
+
+void PDFRenderToImagesDialog::onResolutionPixelsChanged(int value)
+{
+    m_imageExportSettings.setPixelResolution(value);
+}
+
+void PDFRenderToImagesDialog::onCompressionChanged(int value)
+{
+    m_imageWriterSettings.setCompression(value);
+}
+
+void PDFRenderToImagesDialog::onQualityChanged(int value)
+{
+    m_imageWriterSettings.setQuality(value);
+}
+
+void PDFRenderToImagesDialog::onGammaChanged(double value)
+{
+    m_imageWriterSettings.setGamma(value);
+}
+
+void PDFRenderToImagesDialog::onOptimizedWriteChanged(bool value)
+{
+    m_imageWriterSettings.setOptimizedWrite(value);
+}
+
+void PDFRenderToImagesDialog::onProgressiveScanWriteChanged(bool value)
+{
+    m_imageWriterSettings.setProgressiveScanWrite(value);
+}
+
+void PDFRenderToImagesDialog::on_selectDirectoryButton_clicked()
+{
+    QString directory = QFileDialog::getExistingDirectory(this, tr("Select output directory"), ui->directoryEdit->text());
+    if (!directory.isEmpty())
+    {
+        ui->directoryEdit->setText(directory);
+    }
+}
+
+}   // namespace pdfviewer
+
+

PdfForQtViewer/pdfrendertoimagesdialog.h

@@ -0,0 +1,74 @@
+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef PDFRENDERTOIMAGESDIALOG_H
+#define PDFRENDERTOIMAGESDIALOG_H
+
+#include "pdfrenderer.h"
+
+#include <QDialog>
+
+namespace Ui
+{
+class PDFRenderToImagesDialog;
+}
+
+namespace pdfviewer
+{
+
+class PDFRenderToImagesDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit PDFRenderToImagesDialog(QWidget* parent);
+    virtual ~PDFRenderToImagesDialog() override;
+
+private slots:
+    void on_selectDirectoryButton_clicked();
+
+private:
+    /// Loads image writer settings to the ui
+    void loadImageWriterSettings();
+
+    /// Load image export settigns to the ui
+    void loadImageExportSettings();
+
+    void onFormatChanged();
+    void onSubtypeChanged();
+    void onPagesButtonClicked(bool checked);
+    void onSelectedPagesChanged(const QString& text);
+    void onDirectoryChanged(const QString& text);
+    void onFileTemplateChanged(const QString& text);
+    void onResolutionButtonClicked(bool checked);
+    void onResolutionDPIChanged(int value);
+    void onResolutionPixelsChanged(int value);
+    void onCompressionChanged(int value);
+    void onQualityChanged(int value);
+    void onGammaChanged(double value);
+    void onOptimizedWriteChanged(bool value);
+    void onProgressiveScanWriteChanged(bool value);
+
+    Ui::PDFRenderToImagesDialog* ui;
+    pdf::PDFImageWriterSettings m_imageWriterSettings;
+    pdf::PDFPageImageExportSettings m_imageExportSettings;
+    bool m_isLoadingData;
+};
+
+}   // namespace pdfviewer
+
+#endif // PDFRENDERTOIMAGESDIALOG_H

PdfForQtViewer/pdfrendertoimagesdialog.ui

@@ -0,0 +1,286 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PDFRenderToImagesDialog</class>
+ <widget class="QDialog" name="PDFRenderToImagesDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>690</width>
+    <height>593</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Render Document to Images</string>
+  </property>
+  <layout class="QVBoxLayout" name="dialogLayout">
+   <item>
+    <widget class="QGroupBox" name="filesGroupBox">
+     <property name="title">
+      <string>Output Files Settings</string>
+     </property>
+     <layout class="QGridLayout" name="filesGroupBoxLayout">
+      <item row="0" column="0">
+       <widget class="QLabel" name="pagesToRenderLabel">
+        <property name="text">
+         <string>Pages to render</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QLabel" name="fileTemplateLabel">
+        <property name="text">
+         <string>File template</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QRadioButton" name="pagesAllButton">
+        <property name="text">
+         <string>All</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="directoryLabel">
+        <property name="text">
+         <string>Generate into directory</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="3">
+       <widget class="QToolButton" name="selectDirectoryButton">
+        <property name="text">
+         <string>...</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1" colspan="2">
+       <widget class="QLineEdit" name="directoryEdit"/>
+      </item>
+      <item row="3" column="1" colspan="2">
+       <widget class="QLineEdit" name="fileTemplateEdit"/>
+      </item>
+      <item row="1" column="1">
+       <widget class="QRadioButton" name="pagesSelectButton">
+        <property name="text">
+         <string>Pages:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QLineEdit" name="selectedPagesEdit"/>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="imageResolutionGroupBox">
+     <property name="title">
+      <string>Image Resolution</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="0">
+       <widget class="QLabel" name="resolutionLabel">
+        <property name="text">
+         <string>Resolution</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QRadioButton" name="resolutionPixelsButton">
+        <property name="text">
+         <string>Pixels</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QRadioButton" name="resolutionDPIButton">
+        <property name="text">
+         <string>DPI</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <widget class="QSpinBox" name="resolutionDPIEdit">
+        <property name="suffix">
+         <string> dots/inch</string>
+        </property>
+        <property name="minimum">
+         <number>72</number>
+        </property>
+        <property name="maximum">
+         <number>6000</number>
+        </property>
+        <property name="singleStep">
+         <number>36</number>
+        </property>
+        <property name="value">
+         <number>300</number>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QSpinBox" name="resolutionPixelsEdit">
+        <property name="suffix">
+         <string> px</string>
+        </property>
+        <property name="minimum">
+         <number>100</number>
+        </property>
+        <property name="maximum">
+         <number>16384</number>
+        </property>
+        <property name="singleStep">
+         <number>100</number>
+        </property>
+        <property name="value">
+         <number>1000</number>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="imageFormatSettings">
+     <property name="title">
+      <string>Image Format Settings</string>
+     </property>
+     <layout class="QGridLayout" name="imageFormatSettingsLayout">
+      <item row="0" column="0">
+       <widget class="QLabel" name="imageFormatLabel">
+        <property name="text">
+         <string>Format</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="imageSubtypeLabel">
+        <property name="text">
+         <string>Subtype</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QComboBox" name="subtypeComboBox"/>
+      </item>
+      <item row="3" column="1">
+       <widget class="QSpinBox" name="qualityEdit">
+        <property name="maximum">
+         <number>100</number>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QComboBox" name="formatComboBox"/>
+      </item>
+      <item row="4" column="0">
+       <widget class="QLabel" name="gammaLabel">
+        <property name="text">
+         <string>Gamma</string>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="0">
+       <widget class="QLabel" name="optimizedWriteLabel">
+        <property name="text">
+         <string>Optimized write</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="1">
+       <widget class="QDoubleSpinBox" name="gammaEdit"/>
+      </item>
+      <item row="3" column="0">
+       <widget class="QLabel" name="qualityLabel">
+        <property name="text">
+         <string>Quality</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="compressionLabel">
+        <property name="text">
+         <string>Compression</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QSpinBox" name="compressionEdit"/>
+      </item>
+      <item row="6" column="0">
+       <widget class="QLabel" name="progressiveScanWriteLabel">
+        <property name="text">
+         <string>Progressive scan write</string>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="1">
+       <widget class="QCheckBox" name="optimizedWriteCheckBox">
+        <property name="text">
+         <string>Enable</string>
+        </property>
+       </widget>
+      </item>
+      <item row="6" column="1">
+       <widget class="QCheckBox" name="progressiveScanWriteCheckBox">
+        <property name="text">
+         <string>Enable</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QPlainTextEdit" name="plainTextEdit"/>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Apply|QDialogButtonBox::Close</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>PDFRenderToImagesDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>PDFRenderToImagesDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

PdfForQtViewer/pdfviewermainwindow.cpp

@@ -23,6 +23,7 @@
 #include "pdfadvancedfindwidget.h"
 #include "pdfviewersettingsdialog.h"
 #include "pdfdocumentpropertiesdialog.h"
+#include "pdfrendertoimagesdialog.h"
 
 #include "pdfdocumentreader.h"
 #include "pdfvisitor.h"
@@ -830,6 +831,7 @@ void PDFViewerMainWindow::updateActionsAvailability()
     ui->actionRendering_Errors->setEnabled(hasValidDocument);
     ui->actionFind->setEnabled(hasValidDocument);
     ui->actionPrint->setEnabled(hasValidDocument && canPrint);
+    ui->actionRender_to_Images->setEnabled(hasValidDocument && canPrint);
     setEnabled(!isBusy);
 }
 
@@ -1275,5 +1277,13 @@ void PDFViewerMainWindow::on_actionPrint_triggered()
     }
 }
 
-}   // namespace pdfviewer
+void PDFViewerMainWindow::on_actionRender_to_Images_triggered()
+{
+    PDFRenderToImagesDialog dialog(this);
+    if (dialog.exec() == QDialog::Accepted)
+    {
 
+    }
+}
+
+}   // namespace pdfviewer

PdfForQtViewer/pdfviewermainwindow.h

@@ -98,6 +98,8 @@ private slots:
 
     void on_actionPrint_triggered();
 
+    void on_actionRender_to_Images_triggered();
+
 private:
     void onActionOpenTriggered();
     void onActionCloseTriggered();

PdfForQtViewer/pdfviewermainwindow.ui

@@ -32,6 +32,7 @@
     <addaction name="separator"/>
     <addaction name="actionSend_by_E_Mail"/>
     <addaction name="actionPrint"/>
+    <addaction name="actionRender_to_Images"/>
     <addaction name="separator"/>
     <addaction name="actionProperties"/>
     <addaction name="separator"/>
@@ -450,6 +451,11 @@
     <string>Print</string>
    </property>
   </action>
+  <action name="actionRender_to_Images">
+   <property name="text">
+    <string>Render to Images</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <resources>