diff --git a/part.h b/part.h
--- a/part.h
+++ b/part.h
@@ -234,6 +234,7 @@
         void enableTOC(bool enable);
         void slotRebuildBookmarkMenu();
         void enableLayers( bool enable );
+        void slotShowSigStatus( bool allSignaturesValid );
 
     public Q_SLOTS:
         bool saveFile() override;
diff --git a/part.cpp b/part.cpp
--- a/part.cpp
+++ b/part.cpp
@@ -540,6 +540,7 @@
 
     connect( m_reviewsWidget.data(), &Reviews::openAnnotationWindow,
         m_pageView.data(), &PageView::openAnnotationWindow );
+    connect( m_pageView, &PageView::signatureValidationComplete, this, &Part::slotShowSigStatus );
 
     // add document observers
     m_document->addObserver( this );
@@ -619,7 +620,7 @@
     updateViewActions();
 
     // also update the state of the actions in the page view
-    m_pageView->updateActionState( false, false, false );
+    m_pageView->updateActionState( false, false, false, false );
 
     if ( m_embedMode == NativeShellMode )
         m_sidebar->setAutoFillBackground( false );
@@ -1550,7 +1551,14 @@
     // m_pageView->toggleFormsAction() may be null on dummy mode
     else if ( ok && m_pageView->toggleFormsAction() && m_pageView->toggleFormsAction()->isEnabled() )
     {
-        m_formsMessage->setText( i18n( "This document has forms. Click on the button to interact with them, or use View -> Show Forms." ) );
+        if ( m_pageView->validateSignaturesAction() && m_pageView->validateSignaturesAction()->isEnabled() )
+        {
+            m_formsMessage->setText( i18n( "This document has forms of which atleast one is a signature form. Click on the buttons to interact with them." ) );
+        }
+        else
+        {
+            m_formsMessage->setText( i18n( "This document has forms. Click on the button to interact with them, or use View -> Show Forms." ) );
+        }
         m_formsMessage->setMessageType( KMessageWidget::Information );
         m_formsMessage->setVisible( true );
     }
@@ -3372,6 +3380,7 @@
 
     m_pageView->setupActions( actionCollection() );
 
+    m_formsMessage->addAction( m_pageView->validateSignaturesAction() );
     // attach the actions of the children widgets too
     m_formsMessage->addAction( m_pageView->toggleFormsAction() );
 
@@ -3557,6 +3566,12 @@
     ReadWritePart::setReadWrite( readwrite );
 }
 
+void Part::slotShowSigStatus( bool allSignaturesValid )
+{
+    const QString message = allSignaturesValid ? i18n( "All signatures are valid." ) : i18n( "Atleast one signature has problem." );
+    m_pageView->displayMessage( message, QString(), allSignaturesValid ? PageViewMessage::Info : PageViewMessage::Error, 10000 );
+}
+
 } // namespace Okular
 
 #include "part.moc"
diff --git a/ui/pageview.h b/ui/pageview.h
--- a/ui/pageview.h
+++ b/ui/pageview.h
@@ -72,7 +72,7 @@
         void setupBaseActions( KActionCollection * collection );
         void setupViewerActions( KActionCollection * collection );
         void setupActions( KActionCollection * collection );
-        void updateActionState( bool docHasPages, bool docChanged, bool docHasFormWidgets );
+        void updateActionState(bool docHasPages, bool docChanged, bool docHasFormWidgets , bool docHasSignatureForms );
 
         // misc methods (from RMB menu/children)
         bool canFitPageWidth() const;
@@ -102,6 +102,7 @@
 
         KActionCollection *actionCollection() const;
         QAction *toggleFormsAction() const;
+        QAction *validateSignaturesAction() const;
 
         int contentAreaWidth() const;
         int contentAreaHeight() const;
@@ -130,6 +131,7 @@
         void mouseForwardButtonClick();
         void escPressed();
         void fitWindowToPage( const QSize& pageViewPortSize, const QSize& pageSize );
+        void signatureValidationComplete( bool allSignaturesValid );
 
     protected:
         bool event( QEvent * event ) override;
@@ -271,6 +273,7 @@
         void slotProcessRenditionAction( const Okular::RenditionAction *action );
         void slotToggleChangeColors();
         void slotFitWindowToPage();
+        void slotValidateSignatures();
 };
 
 #endif
diff --git a/ui/pageview.cpp b/ui/pageview.cpp
--- a/ui/pageview.cpp
+++ b/ui/pageview.cpp
@@ -235,6 +235,7 @@
     KActionCollection * actionCollection;
     QActionGroup * mouseModeActionGroup;
     QAction * aFitWindowToPage;
+    QAction * aValidateSignatures;
 
     int setting_viewCols;
     bool rtl_Mode;
@@ -363,6 +364,7 @@
     d->aMouseMagnifier = nullptr;
     d->aFitWindowToPage = nullptr;
     d->trimBoundingBox = Okular::NormalizedRect(); // Null box
+    d->aValidateSignatures = nullptr;
 
     switch( Okular::Settings::zoomMode() )
     {
@@ -722,6 +724,12 @@
     d->aToggleForms->setEnabled( false );
     toggleFormWidgets( false );
 
+    d->aValidateSignatures = new QAction( this );
+    ac->addAction( QStringLiteral("validate_signatures"), d->aValidateSignatures );
+    connect( d->aValidateSignatures, &QAction::triggered, this, &PageView::slotValidateSignatures );
+    d->aValidateSignatures->setText( i18n("Validate All signatures"));
+    d->aValidateSignatures->setEnabled( false );
+
     // Setup undo and redo actions
     QAction *kundo = KStandardAction::create( KStandardAction::Undo, d->document, SLOT(undo()), ac );
     QAction *kredo = KStandardAction::create( KStandardAction::Redo, d->document, SLOT(redo()), ac );
@@ -868,6 +876,11 @@
     return d->aToggleForms;
 }
 
+QAction *PageView::validateSignaturesAction() const
+{
+    return d->aValidateSignatures;
+}
+
 int PageView::contentAreaWidth() const
 {
     return horizontalScrollBar()->maximum() + viewport()->width();
@@ -981,6 +994,7 @@
     }
 }
 
+
 //BEGIN DocumentObserver inherited methods
 void PageView::notifySetup( const QVector< Okular::Page * > & pageSet, int setupFlags )
 {
@@ -1088,6 +1102,7 @@
 
     bool haspages = !pageSet.isEmpty();
     bool hasformwidgets = false;
+    bool hassignatureforms = false;
     // create children widgets
     QVector< Okular::Page * >::const_iterator setIt = pageSet.constBegin(), setEnd = pageSet.constEnd();
     for ( ; setIt != setEnd; ++setIt )
@@ -1111,6 +1126,8 @@
                 w->setCanBeFilled( allowfillforms );
                 item->formWidgets().insert( w );
                 hasformwidgets = true;
+                if ( w->formField()->type() == Okular::FormField::FormSignature )
+                    hassignatureforms = true;
             }
         }
 
@@ -1147,7 +1164,7 @@
             QString(),
             PageViewMessage::Info, 4000 );
 
-    updateActionState( haspages, documentChanged, hasformwidgets );
+    updateActionState( haspages, documentChanged, hasformwidgets, hassignatureforms );
 
     // We need to assign it to a different list otherwise slotAnnotationWindowDestroyed
     // will bite us and clear d->m_annowindows
@@ -1158,7 +1175,7 @@
     selectionClear();
 }
 
-void PageView::updateActionState( bool haspages, bool documentChanged, bool hasformwidgets )
+void PageView::updateActionState( bool haspages, bool documentChanged, bool hasformwidgets, bool hassignatureforms )
 {
     if ( d->aPageSizes )
     { // may be null if dummy mode is on
@@ -1245,6 +1262,8 @@
         d->aMouseMagnifier->setEnabled(d->document->supportsTiles());
     if ( d->aFitWindowToPage )
         d->aFitWindowToPage->setEnabled( haspages && !Okular::Settings::viewContinuous() );
+    if ( d->aValidateSignatures )
+        d->aValidateSignatures->setEnabled( haspages && hasformwidgets && hassignatureforms );
 }
 
 bool PageView::areSourceLocationsShownGraphically() const
@@ -5525,6 +5544,25 @@
     emit fitWindowToPage( viewportSize, pageSize );
 }
 
+void PageView::slotValidateSignatures()
+{
+    bool allSignaturesValid = true;
+    foreach ( PageViewItem * item, d->items )
+    {
+        foreach ( FormWidgetIface * w, item->formWidgets() )
+        {
+            if ( w->formField()->type() == Okular::FormField::FormSignature )
+            {
+                Okular::SignatureInfo * sigInfo = static_cast< SignatureEdit * >( w )->validate();
+                if ( sigInfo->signatureStatus() != Okular::SignatureInfo::SignatureValid )
+                    allSignaturesValid = false;
+            }
+        }
+    }
+    d->aValidateSignatures->setEnabled( false );
+    emit signatureValidationComplete( allSignaturesValid );
+}
+
 //END private SLOTS
 
 #include "moc_pageview.cpp"