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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Poppler doesn't display text in separation colorspace with alternate colorspace DeviceGray"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92381">92381</a>
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<th>Summary</th>
<td>Poppler doesn't display text in separation colorspace with alternate colorspace DeviceGray
</td>
</tr>
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<th>Product</th>
<td>poppler
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>general
</td>
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<th>Assignee</th>
<td>poppler-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>Thomas.Freitag@alfa.de
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=118794" name="attach_118794" title="PDF with text in separation colorspace">attachment 118794</a> <a href="attachment.cgi?id=118794&action=edit" title="PDF with text in separation colorspace">[details]</a></span>
PDF with text in separation colorspace
The text in the attached PDF is not displayed. Reason for it is the usage of a
separation colorspace:
cs /CS0
scn 1
where CS0 is something like
[/Separation/Black/DeviceGray 10 0 R]
I looked into the source code and figured out that "scn 1" results in white
color, i.e. RGB(255,255,255). But the PDF spec says for separation colorspaces:
A colour value in a Separation colour space shall consist of a single tint
component in the range 0.0 to 1.0. The value 0.0 shall represent the minimum
amount of colorant that can be applied; 1.0 shall represent the maximum. Tints
shall always be treated as subtractive colours, even if the device produces
output for the designated component by an additive method. Thus, a tint value
of 0.0 denotes the lightest colour that can be achieved with the given
colorant, and 1.0 is the darkest.
Therefore "scn 1" should result in RGB(0,0,0).
I have already a solution for it, but I want to regtest it first, because I
deeply wonder why we haven't encounter this before!</pre>
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