Can not reproduce, can you attach a pdf with which you are having this problem?

Created attachment 20687 [details]
small pdf showing the problem.

in normal mode the footnote does not have any rectangle.
in print mode it has.

Created attachment 20688 [details]
screenshot showing the rectangles

this screenshot shows the bug: the top view is the normal view. There is no
rectangle. The bottom is the print-preview. There is a red rectangle. (which
is then printed).

SVN commit 668258 by aacid:

changing APIs means you should TRIPLE check, double checking is not enough :-/
BUGS: 145907


 M  +3 -3      generator_pdf.cpp  


--- branches/KDE/3.5/kdegraphics/kpdf/core/generator_pdf/generator_pdf.cpp #668257:668258
@@ -316,7 +316,7 @@
     // 1. Set OutputDev parameters and Generate contents
     // note: thread safety is set on 'false' for the GUI (this) thread
     kpdfOutputDev->setParams( request->width, request->height, genObjectRects, genObjectRects, false );
-    pdfdoc->displayPage( kpdfOutputDev, page->number() + 1, fakeDpiX, fakeDpiY, 0, false, true, genObjectRects );
+    pdfdoc->displayPage( kpdfOutputDev, page->number() + 1, fakeDpiX, fakeDpiY, 0, false, true, false );
     if ( genObjectRects )
         pdfdoc->processLinks( kpdfOutputDev, page->number() + 1 );
 
@@ -498,7 +498,7 @@
         docLock.lock();
         for ( ; pIt != pEnd; ++pIt )
         {
-            pdfdoc->displayPage(psOut, *pIt, 72, 72, 0, false, globalParams->getPSCrop(), gFalse);
+            pdfdoc->displayPage(psOut, *pIt, 72, 72, 0, false, globalParams->getPSCrop(), gTrue);
         }
         docLock.unlock();
 
@@ -1197,7 +1197,7 @@
     d->generator->kpdfOutputDev->setParams( width, height, 
                                             genObjectRects, genObjectRects, TRUE /*thread safety*/ );
     d->generator->pdfdoc->displayPage( d->generator->kpdfOutputDev, page->number() + 1,
-                                       fakeDpiX, fakeDpiY, 0, false, true, genObjectRects );
+                                       fakeDpiX, fakeDpiY, 0, false, true, false );
     if ( genObjectRects )
         d->generator->pdfdoc->processLinks( d->generator->kpdfOutputDev, page->number() + 1 );
 

I don't think this bug has been fixed. With KPDF 0.5.8 I still have the problem.

I just tested on some examples, and for me the problem is gone. Does the bug happen with the attached pdf? If not, please upload a sample pdf. If yes, do you see the borders in the print-preview too?

I still have the problem here.
My version of kpdf is 0.5.8 provided by Kubuntu (package version 4:3.5.8-0ubuntu1).
Could it be still present in Kubuntu because Kubuntu uses a different kpdf from the official one (something to do with poppler) ?

If you are seeing a red square it is working.