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[Bug 1438494] Re: ghostscript fails to correctly substitute cidf fonts

 

Your file contains neither fonts nor CIDFonts, it is simply one big
image. Whilst it is common practice for scanner produced PDF to use OCR
to overlay the scanned image with non-marking characters (obviously,
being non-marking, the actual font used does not really matter), this
file does not do so. I'd guess that's because either the OCR function
was disabled, or it simply could not recognise the handwritten
characters.

Anyway, as our 9.16 release fails with the same error as you saw (i.e. the error is not caused by the Ubuntu packaging), but the 9.18 release (which I assume is what you tested) works without error, I had a hunt, and found that the fix is this one:
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=668406a5

I would suggest, if you want the maintainer to pull in this patch, you
*may* want to open a new bug report, referencing the above commit.

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https://bugs.launchpad.net/bugs/1438494

Title:
  ghostscript fails to correctly substitute cidf fonts

Status in poppler-data package in Ubuntu:
  Triaged

Bug description:
  I reported this bug first with ghostscript
  (http://bugs.ghostscript.com/show_bug.cgi?id=695874), but it is
  apparently a packaging issue.

  The general issue is that when there is a CIDF font in a .pdf that is
  not embedded in the document, ghostscript will stop processing the
  file at that font (see the file attached to the ghostscript bug).  The
  packaging issue is that CIDF fonts that are not on the system are in
  the default Ubuntu cidfmap file.

  System info is:

  $ lsb_release -a
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description:    Ubuntu 14.10
  Release:        14.10
  Codename:       utopic

  $ ghostscript --version
  9.14

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