diff --git a/Pdf4QtDocPageOrganizer/aboutdialog.cpp b/Pdf4QtDocPageOrganizer/aboutdialog.cpp
index 6fd0ee8..56a4f64 100644
--- a/Pdf4QtDocPageOrganizer/aboutdialog.cpp
+++ b/Pdf4QtDocPageOrganizer/aboutdialog.cpp
@@ -53,6 +53,7 @@ PDFAboutDialog::PDFAboutDialog(QWidget* parent) :
     }
 
     pdf::PDFWidgetUtils::scaleWidget(this, QSize(750, 600));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFAboutDialog::~PDFAboutDialog()
diff --git a/Pdf4QtDocPageOrganizer/assembleoutputsettingsdialog.cpp b/Pdf4QtDocPageOrganizer/assembleoutputsettingsdialog.cpp
index 4fced52..fc3f63b 100644
--- a/Pdf4QtDocPageOrganizer/assembleoutputsettingsdialog.cpp
+++ b/Pdf4QtDocPageOrganizer/assembleoutputsettingsdialog.cpp
@@ -38,6 +38,7 @@ AssembleOutputSettingsDialog::AssembleOutputSettingsDialog(QString directory, QW
     ui->outlineModeComboBox->setCurrentIndex(ui->outlineModeComboBox->findData(int(pdf::PDFDocumentManipulator::OutlineMode::DocumentParts)));
 
     pdf::PDFWidgetUtils::scaleWidget(this, QSize(450, 150));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 AssembleOutputSettingsDialog::~AssembleOutputSettingsDialog()
diff --git a/Pdf4QtDocPageOrganizer/mainwindow.cpp b/Pdf4QtDocPageOrganizer/mainwindow.cpp
index 9381be5..c2c5cb2 100644
--- a/Pdf4QtDocPageOrganizer/mainwindow.cpp
+++ b/Pdf4QtDocPageOrganizer/mainwindow.cpp
@@ -547,7 +547,7 @@ void MainWindow::performOperation(Operation operation)
             break;
 
         case Operation::GetSource:
-            QDesktopServices::openUrl(QUrl("https://github.com/JakubMelka/PdfForQt"));
+            QDesktopServices::openUrl(QUrl("https://github.com/JakubMelka/PDF4QT"));
             break;
 
         case Operation::InsertEmptyPage:
diff --git a/Pdf4QtDocPageOrganizer/selectbookmarkstoregroupdialog.cpp b/Pdf4QtDocPageOrganizer/selectbookmarkstoregroupdialog.cpp
index 81af147..7a3c0ab 100644
--- a/Pdf4QtDocPageOrganizer/selectbookmarkstoregroupdialog.cpp
+++ b/Pdf4QtDocPageOrganizer/selectbookmarkstoregroupdialog.cpp
@@ -46,6 +46,7 @@ SelectBookmarksToRegroupDialog::SelectBookmarksToRegroupDialog(const pdf::PDFDoc
 
     QSize size = pdf::PDFWidgetUtils::scaleDPI(this, QSize(400, 600));
     setMinimumSize(size);
+    pdf::PDFWidgetUtils::style(this);
 }
 
 SelectBookmarksToRegroupDialog::~SelectBookmarksToRegroupDialog()
diff --git a/Pdf4QtLib/sources/pdfobjecteditorwidget.cpp b/Pdf4QtLib/sources/pdfobjecteditorwidget.cpp
index f389ef0..1a58a72 100644
--- a/Pdf4QtLib/sources/pdfobjecteditorwidget.cpp
+++ b/Pdf4QtLib/sources/pdfobjecteditorwidget.cpp
@@ -998,6 +998,7 @@ PDFEditObjectDialog::PDFEditObjectDialog(EditObjectType type, QWidget* parent) :
     connect(m_buttonBox, &QDialogButtonBox::rejected, this, &PDFEditObjectDialog::reject);
 
     setMinimumSize(PDFWidgetUtils::scaleDPI(this, QSize(480, 320)));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 void PDFEditObjectDialog::setObject(PDFObject object)
diff --git a/Pdf4QtLib/sources/pdfrenderingerrorswidget.cpp b/Pdf4QtLib/sources/pdfrenderingerrorswidget.cpp
index 418d328..69eb892 100644
--- a/Pdf4QtLib/sources/pdfrenderingerrorswidget.cpp
+++ b/Pdf4QtLib/sources/pdfrenderingerrorswidget.cpp
@@ -19,6 +19,8 @@
 #include "pdfdrawwidget.h"
 #include "ui_pdfrenderingerrorswidget.h"
 
+#include "pdfwidgetutils.h"
+
 namespace pdf
 {
 
@@ -96,6 +98,8 @@ PDFRenderingErrorsWidget::PDFRenderingErrorsWidget(QWidget* parent, PDFWidget* p
     {
         ui->renderErrorsTreeWidget->scrollToItem(scrollToItem, QAbstractItemView::EnsureVisible);
     }
+
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFRenderingErrorsWidget::~PDFRenderingErrorsWidget()
diff --git a/Pdf4QtLib/sources/pdfselectpagesdialog.cpp b/Pdf4QtLib/sources/pdfselectpagesdialog.cpp
index 49993ac..0acd6fb 100644
--- a/Pdf4QtLib/sources/pdfselectpagesdialog.cpp
+++ b/Pdf4QtLib/sources/pdfselectpagesdialog.cpp
@@ -64,6 +64,7 @@ PDFSelectPagesDialog::PDFSelectPagesDialog(QString windowTitle,
 
     setMinimumWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, 400));
     updateUi();
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFSelectPagesDialog::~PDFSelectPagesDialog()
diff --git a/Pdf4QtLib/sources/pdfwidgetutils.cpp b/Pdf4QtLib/sources/pdfwidgetutils.cpp
index 5f16553..0f96a15 100644
--- a/Pdf4QtLib/sources/pdfwidgetutils.cpp
+++ b/Pdf4QtLib/sources/pdfwidgetutils.cpp
@@ -17,6 +17,10 @@
 
 #include "pdfwidgetutils.h"
 
+#include <QDialog>
+#include <QLayout>
+#include <QGroupBox>
+
 #ifdef Q_OS_MAC
 int qt_default_dpi_x() { return 72; }
 int qt_default_dpi_y() { return 72; }
@@ -90,4 +94,32 @@ QSize PDFWidgetUtils::scaleDPI(const QPaintDevice* widget, QSize unscaledSize)
     return QSize(width, height);
 }
 
+void PDFWidgetUtils::style(QWidget* widget)
+{
+    const int dialogMarginX = scaleDPI_x(widget, 12);
+    const int dialogMarginY = scaleDPI_y(widget, 12);
+    const int dialogSpacing = scaleDPI_y(widget, 12);
+
+    const int groupBoxMarginX = scaleDPI_x(widget, 20);
+    const int groupBoxMarginY = scaleDPI_y(widget, 20);
+    const int groupBoxSpacing = scaleDPI_y(widget, 12);
+
+    QList<QWidget*> childWidgets = widget->findChildren<QWidget*>();
+    childWidgets.append(widget);
+
+    for (QWidget* childWidget : childWidgets)
+    {
+        if (qobject_cast<QGroupBox*>(childWidget))
+        {
+            childWidget->layout()->setContentsMargins(groupBoxMarginX, groupBoxMarginY, groupBoxMarginX, groupBoxMarginY);
+            childWidget->layout()->setSpacing(groupBoxSpacing);
+        }
+        else if (qobject_cast<QDialog*>(childWidget))
+        {
+            childWidget->layout()->setContentsMargins(dialogMarginX, dialogMarginY, dialogMarginX, dialogMarginY);
+            childWidget->layout()->setSpacing(dialogSpacing);
+        }
+    }
+}
+
 } // namespace pdf
diff --git a/Pdf4QtLib/sources/pdfwidgetutils.h b/Pdf4QtLib/sources/pdfwidgetutils.h
index 4274823..aec89b7 100644
--- a/Pdf4QtLib/sources/pdfwidgetutils.h
+++ b/Pdf4QtLib/sources/pdfwidgetutils.h
@@ -54,6 +54,9 @@ public:
     /// \param device Paint device to obtain logical DPI for scaling
     /// \param unscaledSize Unscaled size
     static QSize scaleDPI(const QPaintDevice* widget, QSize unscaledSize);
+
+    /// Apply style to the widget
+    static void style(QWidget* widget);
 };
 
 } // namespace pdf
diff --git a/Pdf4QtViewer/pdfaboutdialog.cpp b/Pdf4QtViewer/pdfaboutdialog.cpp
index 440eba3..d8eb736 100644
--- a/Pdf4QtViewer/pdfaboutdialog.cpp
+++ b/Pdf4QtViewer/pdfaboutdialog.cpp
@@ -53,6 +53,7 @@ PDFAboutDialog::PDFAboutDialog(QWidget* parent) :
     }
 
     pdf::PDFWidgetUtils::scaleWidget(this, QSize(750, 600));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFAboutDialog::~PDFAboutDialog()
diff --git a/Pdf4QtViewer/pdfdocumentpropertiesdialog.cpp b/Pdf4QtViewer/pdfdocumentpropertiesdialog.cpp
index 54458b6..3bc2c65 100644
--- a/Pdf4QtViewer/pdfdocumentpropertiesdialog.cpp
+++ b/Pdf4QtViewer/pdfdocumentpropertiesdialog.cpp
@@ -55,6 +55,7 @@ PDFDocumentPropertiesDialog::PDFDocumentPropertiesDialog(const pdf::PDFDocument*
     }
 
     pdf::PDFWidgetUtils::scaleWidget(this, QSize(750, 600));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFDocumentPropertiesDialog::~PDFDocumentPropertiesDialog()
diff --git a/Pdf4QtViewer/pdfencryptionsettingsdialog.cpp b/Pdf4QtViewer/pdfencryptionsettingsdialog.cpp
index 7b788d4..ead944a 100644
--- a/Pdf4QtViewer/pdfencryptionsettingsdialog.cpp
+++ b/Pdf4QtViewer/pdfencryptionsettingsdialog.cpp
@@ -19,6 +19,7 @@
 #include "ui_pdfencryptionsettingsdialog.h"
 
 #include "pdfutils.h"
+#include "pdfwidgetutils.h"
 #include "pdfsecurityhandler.h"
 
 #include <QMessageBox>
@@ -73,6 +74,8 @@ PDFEncryptionSettingsDialog::PDFEncryptionSettingsDialog(QByteArray documentId,
 
     updateUi();
     updatePasswordScore();
+
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFEncryptionSettingsDialog::~PDFEncryptionSettingsDialog()
diff --git a/Pdf4QtViewer/pdfoptimizedocumentdialog.cpp b/Pdf4QtViewer/pdfoptimizedocumentdialog.cpp
index bbfc6cf..099d7e7 100644
--- a/Pdf4QtViewer/pdfoptimizedocumentdialog.cpp
+++ b/Pdf4QtViewer/pdfoptimizedocumentdialog.cpp
@@ -65,6 +65,7 @@ PDFOptimizeDocumentDialog::PDFOptimizeDocumentDialog(const pdf::PDFDocument* doc
 
     pdf::PDFWidgetUtils::scaleWidget(this, QSize(640, 380));
     updateUi();
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFOptimizeDocumentDialog::~PDFOptimizeDocumentDialog()
diff --git a/Pdf4QtViewer/pdfprogramcontroller.cpp b/Pdf4QtViewer/pdfprogramcontroller.cpp
index ef09d08..e119a63 100644
--- a/Pdf4QtViewer/pdfprogramcontroller.cpp
+++ b/Pdf4QtViewer/pdfprogramcontroller.cpp
@@ -2149,7 +2149,7 @@ void PDFProgramController::onActionDeveloperCreateInstaller()
 
 void PDFProgramController::onActionGetSource()
 {
-    QDesktopServices::openUrl(QUrl("https://github.com/JakubMelka/PdfForQt"));
+    QDesktopServices::openUrl(QUrl("https://github.com/JakubMelka/PDF4QT"));
 }
 
 void PDFProgramController::onPageRenderingErrorsChanged(pdf::PDFInteger pageIndex, int errorsCount)
diff --git a/Pdf4QtViewer/pdfrendertoimagesdialog.cpp b/Pdf4QtViewer/pdfrendertoimagesdialog.cpp
index c4b713b..2182173 100644
--- a/Pdf4QtViewer/pdfrendertoimagesdialog.cpp
+++ b/Pdf4QtViewer/pdfrendertoimagesdialog.cpp
@@ -82,6 +82,7 @@ PDFRenderToImagesDialog::PDFRenderToImagesDialog(const pdf::PDFDocument* documen
     loadImageExportSettings();
 
     pdf::PDFWidgetUtils::scaleWidget(this, QSize(1000, 600));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 PDFRenderToImagesDialog::~PDFRenderToImagesDialog()
diff --git a/Pdf4QtViewer/pdfviewersettingsdialog.cpp b/Pdf4QtViewer/pdfviewersettingsdialog.cpp
index 6ed6515..ac56d56 100644
--- a/Pdf4QtViewer/pdfviewersettingsdialog.cpp
+++ b/Pdf4QtViewer/pdfviewersettingsdialog.cpp
@@ -193,6 +193,7 @@ PDFViewerSettingsDialog::PDFViewerSettingsDialog(const PDFViewerSettings::Settin
     connect(ui->pluginsTableWidget, &QTableWidget::itemSelectionChanged, this, &PDFViewerSettingsDialog::updatePluginInformation);
 
     setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(1000, 700)));
+    pdf::PDFWidgetUtils::style(this);
 
     ui->optionsPagesWidget->setCurrentRow(0);
     adjustSize();
diff --git a/Pdf4QtViewerPlugins/DimensionsPlugin/settingsdialog.cpp b/Pdf4QtViewerPlugins/DimensionsPlugin/settingsdialog.cpp
index b2b03c9..ca7c54c 100644
--- a/Pdf4QtViewerPlugins/DimensionsPlugin/settingsdialog.cpp
+++ b/Pdf4QtViewerPlugins/DimensionsPlugin/settingsdialog.cpp
@@ -38,6 +38,7 @@ SettingsDialog::SettingsDialog(QWidget* parent, DimensionUnit& lengthUnit, Dimen
     initComboBox(m_angleUnits, m_angleUnit, ui->anglesComboBox);
 
     setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(320, 160)));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 SettingsDialog::~SettingsDialog()
diff --git a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp
index 20e5932..b039773 100644
--- a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp
+++ b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp
@@ -108,6 +108,7 @@ ObjectInspectorDialog::ObjectInspectorDialog(const pdf::PDFCMS* cms, const pdf::
 
     ui->objectTreeView->setMinimumWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, 200));
     setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(800, 600)));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 ObjectInspectorDialog::~ObjectInspectorDialog()
diff --git a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectstatisticsdialog.cpp b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectstatisticsdialog.cpp
index e06551a..77b72fa 100644
--- a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectstatisticsdialog.cpp
+++ b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectstatisticsdialog.cpp
@@ -18,6 +18,8 @@
 #include "objectstatisticsdialog.h"
 #include "ui_objectstatisticsdialog.h"
 
+#include "pdfwidgetutils.h"
+
 namespace pdfplugin
 {
 
@@ -38,6 +40,7 @@ ObjectStatisticsDialog::ObjectStatisticsDialog(const pdf::PDFDocument* document,
     m_statistics = classifier.calculateStatistics(document);
 
     updateStatisticsWidget();
+    pdf::PDFWidgetUtils::style(this);
 }
 
 ObjectStatisticsDialog::~ObjectStatisticsDialog()
diff --git a/Pdf4QtViewerPlugins/OutputPreviewPlugin/inkcoveragedialog.cpp b/Pdf4QtViewerPlugins/OutputPreviewPlugin/inkcoveragedialog.cpp
index ea1169c..d926f9d 100644
--- a/Pdf4QtViewerPlugins/OutputPreviewPlugin/inkcoveragedialog.cpp
+++ b/Pdf4QtViewerPlugins/OutputPreviewPlugin/inkcoveragedialog.cpp
@@ -46,6 +46,7 @@ InkCoverageDialog::InkCoverageDialog(const pdf::PDFDocument* document, pdf::PDFW
 
     setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(800, 600)));
     updateInkCoverage();
+    pdf::PDFWidgetUtils::style(this);
 }
 
 InkCoverageDialog::~InkCoverageDialog()
diff --git a/Pdf4QtViewerPlugins/OutputPreviewPlugin/outputpreviewdialog.cpp b/Pdf4QtViewerPlugins/OutputPreviewPlugin/outputpreviewdialog.cpp
index 1119b2b..2d93f4a 100644
--- a/Pdf4QtViewerPlugins/OutputPreviewPlugin/outputpreviewdialog.cpp
+++ b/Pdf4QtViewerPlugins/OutputPreviewPlugin/outputpreviewdialog.cpp
@@ -82,6 +82,7 @@ OutputPreviewDialog::OutputPreviewDialog(const pdf::PDFDocument* document, pdf::
     onDisplayModeChanged();
     onInkCoverageLimitChanged(ui->inkCoverageLimitEdit->value());
     onRichBlackLimtiChanged(ui->richBlackLimitEdit->value());
+    pdf::PDFWidgetUtils::style(this);
 }
 
 OutputPreviewDialog::~OutputPreviewDialog()
diff --git a/Pdf4QtViewerPlugins/RedactPlugin/createredacteddocumentdialog.cpp b/Pdf4QtViewerPlugins/RedactPlugin/createredacteddocumentdialog.cpp
index 4897568..1135617 100644
--- a/Pdf4QtViewerPlugins/RedactPlugin/createredacteddocumentdialog.cpp
+++ b/Pdf4QtViewerPlugins/RedactPlugin/createredacteddocumentdialog.cpp
@@ -38,6 +38,7 @@ CreateRedactedDocumentDialog::CreateRedactedDocumentDialog(QString fileName, QCo
 
     updateUi();
     setMinimumWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, 300));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 CreateRedactedDocumentDialog::~CreateRedactedDocumentDialog()
diff --git a/Pdf4QtViewerPlugins/SoftProofingPlugin/settingsdialog.cpp b/Pdf4QtViewerPlugins/SoftProofingPlugin/settingsdialog.cpp
index 71eadad..011e6be 100644
--- a/Pdf4QtViewerPlugins/SoftProofingPlugin/settingsdialog.cpp
+++ b/Pdf4QtViewerPlugins/SoftProofingPlugin/settingsdialog.cpp
@@ -43,6 +43,7 @@ SettingsDialog::SettingsDialog(QWidget* parent, const pdf::PDFCMSSettings& setti
     ui->outOfGamutColorEdit->setText(m_settings.outOfGamutColor.name(QColor::HexRgb));
 
     setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(320, 160)));
+    pdf::PDFWidgetUtils::style(this);
 }
 
 SettingsDialog::~SettingsDialog()