diff --git a/src/calibre/ebooks/pdf/image_writer.py b/src/calibre/ebooks/pdf/image_writer.py
index 636e673974..0f6b692305 100644
--- a/src/calibre/ebooks/pdf/image_writer.py
+++ b/src/calibre/ebooks/pdf/image_writer.py
@@ -58,6 +58,7 @@ def get_page_layout(opts, for_comic=False):
 
     margins = QMarginsF(m('left'), m('top'), m('right'), m('bottom'))
     ans = QPageLayout(page_size, QPageLayout.Portrait, margins)
+    ans.setMode(QPageLayout.FullPageMode)
     return ans
 # }}}