[Poppler-bugs] [Bug 107584] New: Font disregarded in Freetext annotation with default appearance (DA) but without appearance stream (AP)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107584

            Bug ID: 107584
           Summary: Font disregarded in Freetext annotation with default
                    appearance (DA) but without appearance stream (AP)
           Product: poppler
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: oliver.sander at tu-dresden.de

Created attachment 141117
  --> https://bugs.freedesktop.org/attachment.cgi?id=141117&action=edit
Test file with freetext annotation without appearance stream

Attached is an example file with a freetext annotation.  This annotation has a
default appearance (DA) but no appearance stream (AP).  Poppler disregards the
font of the annotation.  While admittedly the file has been constructed by
hand-editing (annotating the file in Adobe Reader and then manually removing
the /AP part), it is nevertheless a standard-conforming file.

Fixing this issue is a necessary first step towards fixing
https://bugs.freedesktop.org/show_bug.cgi?id=81748 .

I attach a preliminary patch which kind-of fixes the issue.  'Kind-of' only,
because there are (at least) two issues with it:
- poppler issues

  "Syntax Warning: Unknown font type: '???'"

  from the call to 'GfxFont::makeFont' in Annot.cc:2933

- The text is moved a little bit towards the top of the page (notice how the
  top part of "This is a test" is cut off).

The fact that poppler renders the text in the wrong color (red instead of
black) is a separate bug.


Test file and patch have been written by Tobias Deiminger, who deserves all the
praise.

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