I’m afraid I don’t remember exactly which validator that was. I tried a few
such as veraPDF and Adobe Acrobat’s preflight verifier.
I found one of the preflight output files from Acrobat (but not the input
document unfortunately) and these were the errors when validated against
PDF/A-3a:
1. Device process color used but no PDF/A OutputIntent (101 matches on 1
page) - 1
2. Syntax problem: String object invalid (odd number of hexadecimal
characters)
I think the second error was due to the BOM.
--
Leo
On Sat, 3 Nov 2018 at 13:11, luigi scarso
On Fri, Nov 2, 2018 at 9:03 PM Leo Nikkilä
wrote: I tried PDF/A a while back and noticed the XMP header has an extra byte order mark which validators flagged as “??”.
I’ve attached the patch I used to remove it, however I’m still on an old version of ConTeXt so this might not apply cleanly to yours.
You might need to open the patch in a hex editor to see the difference in the two lines as most text editors will not show the BOM.
-- Leo
Thank you for the patch. Which validator are you referring to?
-- luigi
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