[Poppler-bugs] [Bug 78042] New: Bad PDF rendering: invalid font scale

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78042

          Priority: medium
            Bug ID: 78042
          Assignee: poppler-bugs at lists.freedesktop.org
           Summary: Bad PDF rendering: invalid font scale
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: davidecapod at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: general
           Product: poppler

Created attachment 98133
  --> https://bugs.freedesktop.org/attachment.cgi?id=98133&action=edit
easyjet boarding pass not rendered correctly

Hello, the attached PDF (easyjet boarding pass) is not correctly rendered under
poppler (evince).
I am using Ubuntu 14.04 amd64, so evince 3.10.3 and poppler 0.24.5.

Evince prints a lot of messages like:
Syntax Warning: font matrix not invertible<0a>

while ghostscript renders the PDF correctly, but prints lots of:
   **** Warning: Invalid 0.0 font scale given for Tf ****
   **** Warning: /BBox has zero width or height, which is not allowed.

so I suspect the PDF is defective, but poppler should be made more "fault
tolerant" as ghostscript does.
Otherwise, no boarding pass print anymore :-(

I can fix the PDF with
gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -sOutputFile=out.pdf in.pdf

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