ColorSpace detection of pdf image

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baskote

ColorSpace detection of pdf image

Post by baskote »

Hi,

i extracted this topic out of another thread to not disturb the real discussion there i opened a new topic.

In the other thread you wrote

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ImageMagick cannot always detect the colorspace of a PDF image. You can always force a colorspace with the -colorspace option:

convert -colorspace CMYK pdf_cmyk_rgp.pdf image.png

However, with a patch we can detect CMYK EPS images. We put a patch in ImageMagick 6.3.2-0 Beta, available sometime tomorrow. Thanks for the problem report.
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If you write "cannot always detect the colorspace of a PDF image", it sounds for me you know the limitations. Can you tell me the limitations you know about ?


Markus
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magick
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Post by magick »

ImageMagick scans the PDF but does not render its internal objects. If there is a reliable method to determine the PDF colorspace from just scanning the PDF itself we would like to hear about it.
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