diff --git core/document.cpp core/document.cpp
index 881a4854a..1dcacd278 100644
--- core/document.cpp
+++ core/document.cpp
@@ -165,9 +165,7 @@ QString DocumentPrivate::pagesSizeString() const
     {
         if (m_generator->pagesSizeMetric() != Generator::None)
         {
-            QSizeF size = m_parent->allPagesSize();
-            if (size.isValid()) return localizedSize(size);
-            else return i18nc("Used in this context: 'Page sizes: Multiple'", "Multiple");
+            return m_parent->allPagesSize();
         }
         else return QString();
     }
@@ -3308,7 +3306,7 @@ Rotation Document::rotation() const
     return d->m_rotation;
 }
 
-QSizeF Document::allPagesSize() const
+bool Document::allPagesHaveSameSize() const
 {
     bool allPagesSameSize = true;
     QSizeF size;
@@ -3321,10 +3319,10 @@ QSizeF Document::allPagesSize() const
             allPagesSameSize = (size == QSizeF(p->width(), p->height()));
         }
     }
-    if (allPagesSameSize) return size;
-    else return QSizeF();
+    return allPagesSameSize;
 }
 
+
 QString Document::pageSizeString(int page) const
 {
     if (d->m_generator)
@@ -3338,6 +3336,34 @@ QString Document::pageSizeString(int page) const
     return QString();
 }
 
+QString Document::allPagesSize() const
+{
+    if (allPagesHaveSameSize()) {
+        return pageSizeString(0);
+    }
+
+    QSizeF size;
+    QHash<QSizeF, int> pageSizeFrequencies;
+    for (int i = 0; i < d->m_pagesVector.count(); ++i)
+    {
+        const Page *p = d->m_pagesVector.at(i);
+        size = QSizeF(p->width(), p->height());
+        // Grr why does this not work
+        if (pageSizeFrequencies.contains(size)) pageSizeFrequencies[size] = pageSizeFrequencies[size] + 1;
+        else pageSizeFrequencies[size] = 1;
+    }
+
+    QString finalValue = "";
+    QHash<QSizeF, int>::const_iterator i = pageSizeFrequencies.constBegin();
+    while (i != pageSizeFrequencies.constEnd())
+    {
+        finalValue += i18n("%1:%2", d->localizedSize(i.key()), i.value());
+        ++i;
+    }
+
+    return finalValue;
+}
+
 static bool shouldCancelRenderingBecauseOf( const PixmapRequest & executingRequest, const PixmapRequest & otherRequest )
 {
     // New request has higher priority -> cancel
diff --git core/document.h core/document.h
index 73c9c8686..d7770029b 100644
--- core/document.h
+++ core/document.h
@@ -400,10 +400,9 @@ class OKULARCORE_EXPORT Document : public QObject
         Rotation rotation() const;
 
         /**
-         * If all pages have the same size this method returns it, if the page sizes
-         * differ an empty size object is returned.
+         * Returns whether all pages in the document have the same size.
          */
-        QSizeF allPagesSize() const;
+        bool allPagesHaveSameSize() const;
 
         /**
          * Returns the size string for the given @p page or an empty string
@@ -411,6 +410,13 @@ class OKULARCORE_EXPORT Document : public QObject
          */
         QString pageSizeString( int page ) const;
 
+        /**
+         * Returns a string describing the page sizes in this document.
+         * If all pages have the same size this method returns it; if the page
+         * sizes differ, then each page size is described
+         */
+
+        QString allPagesSize() const;
         /**
          * Returns the gui client of the generator, if it provides one.
          */
diff --git ui/pagesizelabel.cpp ui/pagesizelabel.cpp
index 2772f6d89..47c8af5f9 100644
--- ui/pagesizelabel.cpp
+++ ui/pagesizelabel.cpp
@@ -27,7 +27,7 @@ void PageSizeLabel::notifyCurrentPageChanged( int previousPage, int currentPage
     Q_UNUSED( previousPage )
 
     // if the document is opened
-    if ( m_document->pages() > 0 && !m_document->allPagesSize().isValid() )
+    if ( m_document->pages() > 0 && !m_document->allPagesHaveSameSize() )
     {
         setText( m_document->pageSizeString( currentPage ) );
     }