Error with stamp when converting to PDF/A 1B

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baumunk
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Posts: 38
Joined: Fri Nov 13, 2020 8:47 am

Error with stamp when converting to PDF/A 1B

Post by baumunk »

XChange makes an error when converting to PDF/A 1B
the stamp "Anlage
verband.zip
(150.99 KiB) Downloaded 39 times
: 1" with white background has black background after conversion.

The customer complains about this.
How can I avoid this?

PDF_with_stamp.pdf original file.
PDF_with_stamp_pdfa.pdf after conversion file.

With kind regards Ernest Baumunk
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Tracker Supp-Stefan
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Posts: 17906
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Location: London
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Re: Error with stamp when converting to PDF/A 1B

Post by Tracker Supp-Stefan »

Hello baumunk,

Your stamp is image based with transparent pixels where the 'white' part of it is. PDF/A 1B does not support transparency, and that's why the background is converted. Please save the file as e.g. PDF/A 3B - and your transparency should work (see attached):
PDF_with_stamp_3b.pdf
(89.36 KiB) Downloaded 43 times
Kind regards,
Stefan
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