[Poppler-bugs] [Bug 58569] New: Regression in pdfunite

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58569

          Priority: medium
            Bug ID: 58569
          Assignee: poppler-bugs at lists.freedesktop.org
           Summary: Regression in pdfunite
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: ajohnson at redneon.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: utils
           Product: poppler

Testing with this pdf:

  http://dl.rom1v.com/misc/sequences_zigomar.pdf

from https://bugzilla.gnome.org/show_bug.cgi?id=600357

Using master, I executed the following commands:

pdfseparate -f 1 -l 2 sequences_zigomar.pdf page-%d.pdf
pdfunite page-1.pdf page-2.pdf combined.pdf

When opening combined.pdf in acroread, the second page is rendered blank.
Poppler will render the second page but prints a lot of errors eg

Syntax Error: Couldn't find trailer dictionary
Syntax Error: Invalid XRef entry
Syntax Error: font resource is not a dictionary
Syntax Error: Invalid XRef entry
Syntax Error (45383): Bad 'Length' attribute in stream
Syntax Error: Unknown font tag 'R20'
Syntax Error (54240): No font in show

The individual pages (page-1.pdf and page-2.pdf) render correctly in acroread
and poppler without errors.

Running the same commands using 0.18.4 works fine. I git bisected and the
offending commit is:

  commit c470a3929c0a02b8a543fcada22138ab1fc18176
  Author: Thomas Freitag <Thomas.Freitag at alfa.de>
  Date:   Mon Sep 17 23:13:48 2012 +0200

      Support encrypted pdf files in pdfseparate

I tested again after reverting c470a392 on master and it works fine.

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