[Poppler-bugs] [Bug 68593] Vectorial image is not rendered correctly

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Aug 27 14:44:24 PDT 2013


https://bugs.freedesktop.org/show_bug.cgi?id=68593

--- Comment #3 from James Cloos <cloos at jhcloos.com> ---
The pdf is DeviceN with plates:

         <xmpTPg:PlateNames>
            <rdf:Seq>
               <rdf:li>Cyan</rdf:li>
               <rdf:li>Magenta</rdf:li>
               <rdf:li>Yellow</rdf:li>
               <rdf:li>Black</rdf:li>
               <rdf:li>PANTONE DS 239-8 U</rdf:li>
               <rdf:li>PANTONE 293 U</rdf:li>
               <rdf:li>PANTONE DS 166-1 U</rdf:li>
            </rdf:Seq>
         </xmpTPg:PlateNames>

The PANTONE spots are specified as:

                        <rdf:li rdf:parseType="Resource">
                           <xmpG:swatchName>PANTONE DS 239-8
U</xmpG:swatchName>
                           <xmpG:type>SPOT</xmpG:type>
                           <xmpG:tint>100.000000</xmpG:tint>
                           <xmpG:mode>RGB</xmpG:mode>
                           <xmpG:red>190</xmpG:red>
                           <xmpG:green>231</xmpG:green>
                           <xmpG:blue>228</xmpG:blue>
                        </rdf:li>
                        <rdf:li rdf:parseType="Resource">
                           <xmpG:swatchName>PANTONE 293 U</xmpG:swatchName>
                           <xmpG:type>SPOT</xmpG:type>
                           <xmpG:tint>100.000000</xmpG:tint>
                           <xmpG:mode>LAB</xmpG:mode>
                           <xmpG:L>38.039215</xmpG:L>
                           <xmpG:A>4</xmpG:A>
                           <xmpG:B>-48</xmpG:B>
                        </rdf:li>
                        <rdf:li rdf:parseType="Resource">
                           <xmpG:swatchName>PANTONE DS 166-1
U</xmpG:swatchName>
                           <xmpG:type>SPOT</xmpG:type>
                           <xmpG:tint>100.000000</xmpG:tint>
                           <xmpG:mode>RGB</xmpG:mode>
                           <xmpG:red>102</xmpG:red>
                           <xmpG:green>0</xmpG:green>
                           <xmpG:blue>100</xmpG:blue>
                        </rdf:li>
                     </rdf:Seq>

and the DeviceNs are defined as:

17 0 obj
[ /DeviceN [ /PANTONE#20DS#20166-1#20U /Magenta /Yellow ] /DeviceCMYK 
12 0 R 16 0 R ]
endobj

and:

44 0 obj
[ /DeviceN [ /PANTONE#20DS#20239-8#20U /PANTONE#20293#20U ] 38 0 R 
39 0 R 43 0 R ]
endobj

And those colours are used in the shadings.

Neither mupdf nor gs match acro’s rendering.

A pdf-capable printer with pantone support would be definitive, in how
the rendering is supposed to appear.

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