diff --git a/Pdf4QtLib/sources/pdfpagecontenteditorwidget.cpp b/Pdf4QtLib/sources/pdfpagecontenteditorwidget.cpp
index 11d129f..ee89cb8 100644
--- a/Pdf4QtLib/sources/pdfpagecontenteditorwidget.cpp
+++ b/Pdf4QtLib/sources/pdfpagecontenteditorwidget.cpp
@@ -121,6 +121,11 @@ void PDFPageContentEditorWidget::addAction(QAction* action)
     ui->toolGroupBoxLayout->addWidget(button, row, column, Qt::AlignCenter);
 }
 
+QToolButton* PDFPageContentEditorWidget::getToolButtonForOperation(int operation) const
+{
+    return qobject_cast<QToolButton*>(m_operationMapper.mapping(operation));
+}
+
 void PDFPageContentEditorWidget::onActionTriggerRequest(QObject* actionObject)
 {
     QAction* action = qobject_cast<QAction*>(actionObject);
diff --git a/Pdf4QtLib/sources/pdfpagecontenteditorwidget.h b/Pdf4QtLib/sources/pdfpagecontenteditorwidget.h
index 19a6d9f..995f11e 100644
--- a/Pdf4QtLib/sources/pdfpagecontenteditorwidget.h
+++ b/Pdf4QtLib/sources/pdfpagecontenteditorwidget.h
@@ -23,6 +23,8 @@
 #include <QDockWidget>
 #include <QSignalMapper>
 
+class QToolButton;
+
 namespace Ui
 {
 class PDFPageContentEditorWidget;
@@ -42,6 +44,8 @@ public:
     /// Adds external action to the tool box
     void addAction(QAction* action);
 
+    QToolButton* getToolButtonForOperation(int operation) const;
+
 signals:
     void operationTriggered(int operation);
 
diff --git a/Pdf4QtLib/sources/pdfpagecontentelements.cpp b/Pdf4QtLib/sources/pdfpagecontentelements.cpp
index a538ab3..6375e33 100644
--- a/Pdf4QtLib/sources/pdfpagecontentelements.cpp
+++ b/Pdf4QtLib/sources/pdfpagecontentelements.cpp
@@ -1920,6 +1920,15 @@ void PDFPageContentElementManipulator::performOperation(Operation operation)
                     QRectF currentBoundingBox = (*it)->getBoundingBox();
                     if (isRectangleVerticallyOverlapped(boundingBox, currentBoundingBox))
                     {
+                        QRectF unitedRect = boundingBox.united(currentBoundingBox);
+                        qreal currentOverlap = boundingBox.height() + currentBoundingBox.height() - unitedRect.height();
+
+                        if (qFuzzyIsNull(currentOverlap))
+                        {
+                            ++it;
+                            continue;
+                        }
+
                         elementToRow[*it] = row;
                         maxHeight = qMax(currentBoundingBox.height(), maxHeight);
                         it = rowElementsToProcess.erase(it);
@@ -1960,6 +1969,15 @@ void PDFPageContentElementManipulator::performOperation(Operation operation)
                     QRectF currentBoundingBox = (*it)->getBoundingBox();
                     if (isRectangleHorizontallyOverlapped(boundingBox, currentBoundingBox))
                     {
+                        QRectF unitedRect = boundingBox.united(currentBoundingBox);
+                        qreal currentOverlap = boundingBox.width() + currentBoundingBox.width() - unitedRect.width();
+
+                        if (qFuzzyIsNull(currentOverlap))
+                        {
+                            ++it;
+                            continue;
+                        }
+
                         elementToColumn[*it] = column;
                         maxWidth = qMax(currentBoundingBox.width(), maxWidth);
                         it = columnElementsToProcess.erase(it);
@@ -2038,13 +2056,16 @@ void PDFPageContentElementManipulator::startManipulation(PDFInteger pageIndex,
             continue;
         }
 
-        const uint manipulationMode = element->getManipulationMode(startPoint, snapPointDistanceThreshold);
-        if (manipulationMode)
+        uint manipulationMode = element->getManipulationMode(startPoint, snapPointDistanceThreshold);
+
+        if (!manipulationMode)
         {
-            // Jakub Melka: yes, we can manipulate this element
-            m_manipulatedElements.emplace_back(element->clone());
-            m_manipulationModes[id] = manipulationMode;
+            manipulationMode = PDFPageContentElement::Translate;
         }
+
+        // Jakub Melka: manipulate this element
+        m_manipulatedElements.emplace_back(element->clone());
+        m_manipulationModes[id] = manipulationMode;
     }
 
     if (!m_manipulatedElements.empty())
diff --git a/Pdf4QtViewer/pdf4qtviewer.qrc b/Pdf4QtViewer/pdf4qtviewer.qrc
index 985f175..6f2a227 100644
--- a/Pdf4QtViewer/pdf4qtviewer.qrc
+++ b/Pdf4QtViewer/pdf4qtviewer.qrc
@@ -74,5 +74,21 @@
         <file>resources/save.svg</file>
         <file>resources/save-as.svg</file>
         <file>resources/select-all-text.svg</file>
+        <file>resources/pce-align-bottom.svg</file>
+        <file>resources/pce-align-h-center.svg</file>
+        <file>resources/pce-align-left.svg</file>
+        <file>resources/pce-align-right.svg</file>
+        <file>resources/pce-align-top.svg</file>
+        <file>resources/pce-align-v-center.svg</file>
+        <file>resources/pce-center-h.svg</file>
+        <file>resources/pce-center-v.svg</file>
+        <file>resources/pce-center-vh.svg</file>
+        <file>resources/pce-layout-form.svg</file>
+        <file>resources/pce-layout-grid.svg</file>
+        <file>resources/pce-layout-h.svg</file>
+        <file>resources/pce-layout-v.svg</file>
+        <file>resources/pce-same-height.svg</file>
+        <file>resources/pce-same-size.svg</file>
+        <file>resources/pce-same-width.svg</file>
     </qresource>
 </RCC>
diff --git a/Pdf4QtViewer/resources/pce-align-bottom.svg b/Pdf4QtViewer/resources/pce-align-bottom.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-align-bottom.svg
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
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+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="Vrstva_1"
+   x="0px"
+   y="0px"
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+   viewBox="0 0 24 24"
+   enable-background="new 0 0 24 24"
+   xml:space="preserve"
+   sodipodi:docname="placeholder.svg"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"><metadata
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diff --git a/Pdf4QtViewer/resources/pce-align-h-center.svg b/Pdf4QtViewer/resources/pce-align-h-center.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-align-h-center.svg
@@ -0,0 +1,57 @@
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+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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diff --git a/Pdf4QtViewer/resources/pce-align-left.svg b/Pdf4QtViewer/resources/pce-align-left.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-align-left.svg
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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+
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+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
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+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"><metadata
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diff --git a/Pdf4QtViewer/resources/pce-align-right.svg b/Pdf4QtViewer/resources/pce-align-right.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-align-right.svg
@@ -0,0 +1,57 @@
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diff --git a/Pdf4QtViewer/resources/pce-align-top.svg b/Pdf4QtViewer/resources/pce-align-top.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-align-top.svg
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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diff --git a/Pdf4QtViewer/resources/pce-align-v-center.svg b/Pdf4QtViewer/resources/pce-align-v-center.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-align-v-center.svg
@@ -0,0 +1,57 @@
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diff --git a/Pdf4QtViewer/resources/pce-center-h.svg b/Pdf4QtViewer/resources/pce-center-h.svg
new file mode 100644
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+     id="tspan825"
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diff --git a/Pdf4QtViewer/resources/pce-same-size.svg b/Pdf4QtViewer/resources/pce-same-size.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-same-size.svg
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="Vrstva_1"
+   x="0px"
+   y="0px"
+   width="24px"
+   height="24px"
+   viewBox="0 0 24 24"
+   enable-background="new 0 0 24 24"
+   xml:space="preserve"
+   sodipodi:docname="placeholder.svg"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"><metadata
+   id="metadata15"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><defs
+   id="defs13" /><sodipodi:namedview
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+   bordercolor="#666666"
+   borderopacity="1"
+   objecttolerance="10"
+   gridtolerance="10"
+   guidetolerance="10"
+   inkscape:pageopacity="0"
+   inkscape:pageshadow="2"
+   inkscape:window-width="3840"
+   inkscape:window-height="2035"
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+   inkscape:cy="12"
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+</svg>
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diff --git a/Pdf4QtViewer/resources/pce-same-width.svg b/Pdf4QtViewer/resources/pce-same-width.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/pce-same-width.svg
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="Vrstva_1"
+   x="0px"
+   y="0px"
+   width="24px"
+   height="24px"
+   viewBox="0 0 24 24"
+   enable-background="new 0 0 24 24"
+   xml:space="preserve"
+   sodipodi:docname="placeholder.svg"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"><metadata
+   id="metadata15"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><defs
+   id="defs13" /><sodipodi:namedview
+   pagecolor="#ffffff"
+   bordercolor="#666666"
+   borderopacity="1"
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+   gridtolerance="10"
+   guidetolerance="10"
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+   inkscape:pageshadow="2"
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+   x="6.4067798"
+   y="21.355932"
+   id="text827"><tspan
+     sodipodi:role="line"
+     id="tspan825"
+     x="6.4067798"
+     y="21.355932">?</tspan></text>
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diff --git a/Pdf4QtViewer/resources/placeholder.svg b/Pdf4QtViewer/resources/placeholder.svg
new file mode 100644
index 0000000..d2a3670
--- /dev/null
+++ b/Pdf4QtViewer/resources/placeholder.svg
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="Vrstva_1"
+   x="0px"
+   y="0px"
+   width="24px"
+   height="24px"
+   viewBox="0 0 24 24"
+   enable-background="new 0 0 24 24"
+   xml:space="preserve"
+   sodipodi:docname="placeholder.svg"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"><metadata
+   id="metadata15"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><defs
+   id="defs13" /><sodipodi:namedview
+   pagecolor="#ffffff"
+   bordercolor="#666666"
+   borderopacity="1"
+   objecttolerance="10"
+   gridtolerance="10"
+   guidetolerance="10"
+   inkscape:pageopacity="0"
+   inkscape:pageshadow="2"
+   inkscape:window-width="3840"
+   inkscape:window-height="2035"
+   id="namedview11"
+   showgrid="false"
+   inkscape:zoom="9.8333333"
+   inkscape:cx="12"
+   inkscape:cy="12"
+   inkscape:window-x="-13"
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+   y="21.355932"
+   id="text827"><tspan
+     sodipodi:role="line"
+     id="tspan825"
+     x="6.4067798"
+     y="21.355932">?</tspan></text>
+</svg>
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diff --git a/Pdf4QtViewerPlugins/SignaturePlugin/signatureplugin.cpp b/Pdf4QtViewerPlugins/SignaturePlugin/signatureplugin.cpp
index 04ce4cd..03c33d1 100644
--- a/Pdf4QtViewerPlugins/SignaturePlugin/signatureplugin.cpp
+++ b/Pdf4QtViewerPlugins/SignaturePlugin/signatureplugin.cpp
@@ -20,6 +20,7 @@
 #include "pdfpagecontenteditorwidget.h"
 
 #include <QAction>
+#include <QToolButton>
 #include <QMainWindow>
 
 namespace pdfplugin
@@ -276,6 +277,23 @@ void SignaturePlugin::updateDockWidget()
     m_editorWidget->setWindowTitle(tr("Signature Toolbox"));
     connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::operationTriggered, &m_scene, &pdf::PDFPageContentScene::performOperation);
 
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignTop))->setIcon(QIcon(":/resources/pce-align-top.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignCenterVertically))->setIcon(QIcon(":/resources/pce-align-v-center.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignBottom))->setIcon(QIcon(":/resources/pce-align-bottom.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignLeft))->setIcon(QIcon(":/resources/pce-align-left.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignCenterHorizontally))->setIcon(QIcon(":/resources/pce-align-h-center.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignRight))->setIcon(QIcon(":/resources/pce-align-right.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::SetSameHeight))->setIcon(QIcon(":/resources/pce-same-height.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::SetSameWidth))->setIcon(QIcon(":/resources/pce-same-width.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::SetSameSize))->setIcon(QIcon(":/resources/pce-same-size.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::CenterHorizontally))->setIcon(QIcon(":/resources/pce-center-h.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::CenterVertically))->setIcon(QIcon(":/resources/pce-center-v.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::CenterHorAndVert))->setIcon(QIcon(":/resources/pce-center-vh.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutVertically))->setIcon(QIcon(":/resources/pce-layout-v.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutHorizontally))->setIcon(QIcon(":/resources/pce-layout-h.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutForm))->setIcon(QIcon(":/resources/pce-layout-form.svg"));
+    m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutGrid))->setIcon(QIcon(":/resources/pce-layout-grid.svg"));
+
     for (QAction* action : m_actions)
     {
         m_editorWidget->addAction(action);