[poppler] too slow when opening PDF 1.5 files

[Albert Astals Cid]

A Dijous, 25 de febrer de 2010, Pablo Rodríguez va escriure:
> On 02/24/2010 10:33 PM, Albert Astals Cid wrote:
> > A Dimecres, 24 de febrer de 2010, Pablo Rodríguez va escriure:
> >> Hi there,
> >> 
> >> I have just discovered that evince (and also xpdf) is much slower
> >> dealing with PDF 1.5 documents than it is with the same document in PDF
> >> 1.4.
> >> 
> >> Here you have the test (generated both with XeLaTeX):
> >> 
> >> http://www.tei-c.org/release/doc/tei-p5-doc/en/Guidelines.pdf (PDF 1.4)
> >> http://users.ox.ac.uk/~rahtz/Guidelines.pdf (PDF 1.5, much smaller)
> >> 
> >> Evince and pdfinfo show a huge difference when opening both versions and
> >> acroread 9.3 and mupdf-r938 show almost an irrelevant one.
> >> 
> >> Tests bellow (correct me if I'm wrong). Guidelines.pdf is the PDF 1.5
> >> document and TEI_Guidelines.pdf is the PDF 1.4 document.
> > 
> > Unless you are going to develop a fix, please file a bug report or this
> > will end up lost in the history of the list.
> 
> Sorry, Albert. I'm not using the latest version from poppler, so I
> wanted to know whether this was already been fixed (but I forgot to
> mention it too :-)).
> 
> I'll report the bug right now.

Thanks, in the future please do not set severity to major for a so simple and 
for sure not major issue.

Albert

> 
> > On the other hand i don't see why you are surprised, one file is
> > compressed, the other is not, thus reading the compressed file takes
> > longer.
> > 
> > On the other hand probably it can be made faster, yes.
> 
> I'm not good at math, but it takes only 25-30% longer with acroread and
> mupdf to open the compressed file.
> 
> Thanks,
> 
> 
> Pablo
> _______________________________________________
> poppler mailing list
> poppler at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/poppler