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hefronmedia / pdfsizeopt

Automatically exported from code.google.com/p/pdfsizeopt
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evince displays: Loop in Pages tree #40

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
See also issue 39 (http://code.google.com/p/pdfsizeopt/issues/detail?id=39) 
with another bug with this book.pdf file.

Input:

* pdfsizeopt r143.
* http://algo.inria.fr/flajolet/Publications/book.pdf

Command:

./pdfsizeopt.py --use-pngout=true --use-jbig2=true --use-multivalent=true 
--do-unify-fonts=false book.pdf

It runs successfully, generates book.psom.pdf, that file works with Ghostscript 
without a warning or error, but xpdf and evince on Ubuntu Lucid display the 
following messages before displaying the PDF:

Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Page count in top-level pages object is incorrect

Original issue reported on code.google.com by pts...@gmail.com on 10 Feb 2011 at 8:16

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
Same here running Debian/squeeze - and a real problem, as the 2nd
pages with same content as before disappeared (generated by
pdflatex, viewed with evince and okular). gs works.

Maybe a special condition: AabcBabc > AabcB - the lost duplicated (by
LaTeX-source, no binary 'PDFtricks') pages at the tail of the
document.

Solution: --do-unify-pages=false

Result: 214325/40092/40101 bytes. Only nine bytes more!

Seems to be no problem of pdfsizeopt itself. No errors with evince@Debian/sid.

Original comment by cartho...@googlemail.com on 3 Sep 2011 at 9:26

GoogleCodeExporter commented 9 years ago 
Oddly enough --use-mutivalent=yes here generates book.psom.pdf, which is not 
viewable at all in evince. It's worth a closer look investigating what's going 
on.

In the meantime, do you have a smaller document with similar problems?

Original comment by pts...@gmail.com on 15 Apr 2012 at 9:18

GoogleCodeExporter commented 9 years ago 
Please discard my previous comment about --use-multivalent=yes . As of r191, it 
works as the following: with --do-unify-pages=yes, old evince displays the 
output it without any messages; with --do-unify-pages=no, Evince on Ubuntu 
Lucid print

Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Loop in Pages tree
Error: Page count in top-level pages object is incorrect

to stdout before displaying the PDF correctly.

There is nothing here to fix in pdfsizeopt, this seems to be a bug in xpdf, 
evince and libpoppler (all using the same codebase). Please report this bug 
against those projects, or use --do-unify-pages=no (or =false) as a workaround. 
If you think pdfsizeopt creates incorrect or invalid PDF, please leave a 
comment containing a reason why (preferably pointing to a paragraph into the 
PDF reference).

Original comment by pts...@gmail.com on 15 Apr 2012 at 10:25