diff --git a/core/document.cpp b/core/document.cpp
index 070c95f8d..5f5069cd6 100644
--- a/core/document.cpp
+++ b/core/document.cpp
@@ -2133,6 +2133,43 @@ void DocumentPrivate::loadSyncFile( const QString & filePath )
             m_pagesVector[i]->setSourceReferences( refRects.at(i) );
 }
 
+void DocumentPrivate::clearAndWaitForRequests()
+{
+    m_pixmapRequestsMutex.lock();
+    QLinkedList< PixmapRequest * >::const_iterator sIt = m_pixmapRequestsStack.constBegin();
+    QLinkedList< PixmapRequest * >::const_iterator sEnd = m_pixmapRequestsStack.constEnd();
+    for ( ; sIt != sEnd; ++sIt )
+        delete *sIt;
+    m_pixmapRequestsStack.clear();
+    m_pixmapRequestsMutex.unlock();
+
+    QEventLoop loop;
+    bool startEventLoop = false;
+    do
+    {
+        m_pixmapRequestsMutex.lock();
+        startEventLoop = !m_executingPixmapRequests.isEmpty();
+
+        if ( m_generator->hasFeature( Generator::SupportsCancelling ) )
+        {
+            for ( PixmapRequest *executingRequest : qAsConst( m_executingPixmapRequests ) )
+                executingRequest->d->mShouldAbortRender = 1;
+
+            if ( m_generator->d_ptr->mTextPageGenerationThread )
+                m_generator->d_ptr->mTextPageGenerationThread->abortExtraction();
+        }
+
+        m_pixmapRequestsMutex.unlock();
+        if ( startEventLoop )
+        {
+            m_closingLoop = &loop;
+            loop.exec();
+            m_closingLoop = nullptr;
+        }
+    }
+    while ( startEventLoop );
+}
+
 Document::Document( QWidget *widget )
     : QObject( nullptr ), d( new DocumentPrivate( this ) )
 {
@@ -2548,39 +2585,7 @@ void Document::closeDocument()
     d->m_scripter = nullptr;
 
      // remove requests left in queue
-    d->m_pixmapRequestsMutex.lock();
-    QLinkedList< PixmapRequest * >::const_iterator sIt = d->m_pixmapRequestsStack.constBegin();
-    QLinkedList< PixmapRequest * >::const_iterator sEnd = d->m_pixmapRequestsStack.constEnd();
-    for ( ; sIt != sEnd; ++sIt )
-        delete *sIt;
-    d->m_pixmapRequestsStack.clear();
-    d->m_pixmapRequestsMutex.unlock();
-
-    QEventLoop loop;
-    bool startEventLoop = false;
-    do
-    {
-        d->m_pixmapRequestsMutex.lock();
-        startEventLoop = !d->m_executingPixmapRequests.isEmpty();
-
-        if ( d->m_generator->hasFeature( Generator::SupportsCancelling ) )
-        {
-            for ( PixmapRequest *executingRequest : qAsConst( d->m_executingPixmapRequests ) )
-                executingRequest->d->mShouldAbortRender = 1;
-
-            if ( d->m_generator->d_ptr->mTextPageGenerationThread )
-                d->m_generator->d_ptr->mTextPageGenerationThread->abortExtraction();
-        }
-
-        d->m_pixmapRequestsMutex.unlock();
-        if ( startEventLoop )
-        {
-            d->m_closingLoop = &loop;
-            loop.exec();
-            d->m_closingLoop = nullptr;
-        }
-    }
-    while ( startEventLoop );
+    d->clearAndWaitForRequests();
 
     if ( d->m_fontThread )
     {
@@ -4491,6 +4496,8 @@ bool Document::swapBackingFile( const QString &newFileName, const QUrl &url )
     // Save metadata about the file we're about to close
     d->saveDocumentInfo();
 
+    d->clearAndWaitForRequests();
+
     qCDebug(OkularCoreDebug) << "Swapping backing file to" << newFileName;
     QVector< Page * > newPagesVector;
     Generator::SwapBackingFileResult result = d->m_generator->swapBackingFile( newFileName, newPagesVector );
diff --git a/core/document_p.h b/core/document_p.h
index 66e1d617f..631b86fe8 100644
--- a/core/document_p.h
+++ b/core/document_p.h
@@ -203,6 +203,8 @@ class DocumentPrivate
         // For sync files
         void loadSyncFile( const QString & filePath );
 
+        void clearAndWaitForRequests();
+
         // member variables
         Document *m_parent;
         QPointer<QWidget> m_widget;
diff --git a/generators/poppler/generator_pdf.cpp b/generators/poppler/generator_pdf.cpp
index 5421c7427..743c09bbf 100644
--- a/generators/poppler/generator_pdf.cpp
+++ b/generators/poppler/generator_pdf.cpp
@@ -1187,29 +1187,27 @@ Okular::TextPage* PDFGenerator::textPage( Okular::TextRequest *request )
     // build a TextList...
     QList<Poppler::TextBox*> textList;
     double pageWidth, pageHeight;
+    userMutex()->lock();
     Poppler::Page *pp = pdfdoc->page( page->number() );
     if (pp)
     {
-        userMutex()->lock();
 #ifdef HAVE_POPPLER_0_63
         TextExtractionPayload payload(request);
         textList = pp->textList( Poppler::Page::Rotate0, shouldAbortTextExtractionCallback, QVariant::fromValue( &payload ) );
 #else
         textList = pp->textList();
 #endif
-        userMutex()->unlock();
-
-        QSizeF s = pp->pageSizeF();
+        const QSizeF s = pp->pageSizeF();
         pageWidth = s.width();
         pageHeight = s.height();
-
-        delete pp;
     }
     else
     {
         pageWidth = defaultPageWidth;
         pageHeight = defaultPageHeight;
     }
+    delete pp;
+    userMutex()->unlock();
 
     if ( textList.isEmpty() && request->shouldAbortExtraction() )
         return nullptr;