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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - pdftocairo -pdf adds adds characters"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105579">105579</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>pdftocairo -pdf adds adds characters
</td>
</tr>
<tr>
<th>Product</th>
<td>cairo
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>pdf backend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>ajohnson@redneon.com
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jason@inspiresomeone.us
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>cairo-bugs@cairographics.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=138181" name="attach_138181" title="anonymized.pdf">attachment 138181</a> <a href="attachment.cgi?id=138181&action=edit" title="anonymized.pdf">[details]</a></span>
anonymized.pdf
I received a file from gour on the poppler IRC. With recent versions of cairo,
printing with evince adds some characters to the document. I don't believe I'm
allowed to share the original file so I'm attaching this anonymized version.
This is reproducible through poppler's pdftocairo program. Running `pdftocairo
-pdf anonymized.pdf bad.pdf` produces a pdf that shows additional characters. I
traced the regression to this commit:
commit 495362279b42620071c6b46f69918ce324aee0db (refs/bisect/bad)
Author: Adrian Johnson <<a href="mailto:ajohnson@redneon.com">ajohnson@redneon.com</a>>
Date: Sun Sep 27 08:27:53 2015 +0930
scaled-font-subsets: if glyph 0 used for rendering, remap to different
index
Some broken pdfs use glyph 0 in embedded fonts for rendering instead of
.notdef.
The cmap we use for embedding latin fonts does not allow rendering glyph 0.
Ensure
if glyph 0 is used, it is mapped to a non 0 glyph in the subset.
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Lots of spaces between words missing in printed document (and sometimes print preview)."
href="show_bug.cgi?id=89082">Bug 89082</a>
This PDF includes a character mapped to glyph index 0. It's not supposed to be
visible in the document, but after `pdftocairo -pdf` conversion it is.</pre>
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