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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - pdftohtml very slow if pdf uses tiling pattern fill"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73400">73400</a>
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<th>Assignee</th>
<td>poppler-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>pdftohtml very slow if pdf uses tiling pattern fill
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>freedesktop@arbruijn.dds.nl
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>pdftohtml
</td>
</tr>
<tr>
<th>Product</th>
<td>poppler
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=91677" name="attach_91677" title="slow pdf">attachment 91677</a> <a href="attachment.cgi?id=91677&action=edit" title="slow pdf">[details]</a></span>
slow pdf
pdftohtml is very slow if the pdf uses tiling pattern fill. The attached pdf
takes many hours to process.
Some backtraces show this is caused by
Gfx::doTilingPatternFill/Gfx::drawForm/Gfx::pushResources which reloads all
fonts many times.
I saw the ImageOutputDev backend has an empty tilingPatternFill method to
"avoid the potentially slow loop in Gfx.cc". Since HtmlOutputDev has similar
image handling to ImageOutputDev it seems appropriate to add this empty method
to HtmlOutputDev as well. This indeed solves the slowness.</pre>
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