PDF X/3 compliance

[LukasKlement]

I'd like to achieve PDF X/3 compliance for the PDFs generated with WeasyPrint. Is it possible to set the following details:

• Set OutputIntent to GTS_PDFX
• GTSPDFXVersion key
• Document ID

Also, I get the following error in Acrobat:

• Trapped key not true or false

The list of requirements were determined by the Acrobat PDF/X compliance tool.

[liZe]

That's a good idea!

If you know what these properties are (I don't), it's probably easy to add: we use the pdfrw library to modify the generated PDF file, we can add/change these values when editing metadata.

If you don't, we have to read the PDF specification to know how and where to add these values.

[LukasKlement]

I answer as far as my knowledge goes in that respect:

Output Intent
Needs to be of the subtype GTS_PDFX, here's an example metadata: <</Metadata 2 0 R/OutputIntents[<</DestOutputProfile 5 0 R/Info(U.S. Web Coated \(SWOP\) v2)/OutputConditionIdentifier(CGATS TR 001)/RegistryName(http://www.color.org)/S/GTS_PDFX/Type/OutputIntent>>]/Pages 3 0 R/Type/Catalog/ViewerPreferences<</Direction/L2R>>>>

GTSPDFXVersion key
Should simply be set to the PDF X version: PDF/X-3:2002 (GTS_PDFXVersion(PDF/X-3:2002))

Document ID
The document ID is an array of two byte-strings constituting a file identifier
for the file. The first byte string is a permanent identifier based on the
contents of the file at the time it was originally created and the second
byte string is a changing identifier based on the file's contents at the time
it was last updated. It should be a MD5 hash.

Trapped key
The trapped flag in a PDF document indicates whether the document has been "trapped", i.e. corrected for slight color misregistrations, or not.
We simply need to set it to false (/Trapped/False)

Please let me know if I should provide example documents.

[grewn0uille]

Hello!

(The survey is now closed. Thanks for all your answers! We’ll share the results soon 😉)

If you’re interested in PDF X/3 compliance, we created a short survey where you can give a boost to this feature and help us to improve WeasyPrint 😉

Vote for it!

[oneWaveAdrian]

@grewn0uille I would also be very interested in PDF/X compliance, it's been a while, is there any update on what you guys achieved so far / what the timeline is / how to help?

[grewn0uille]

Hello,
You can find the results of the survey in this article. PDF X/3 didn’t do very well… so, except if it becomes a sponsored feature, it’s not on our roadmap.
If you want to have an idea of what is coming next, you can have a look at the milestones (please keep in mind they’re not set in stone).

[oneWaveAdrian]

Thanks for the quick response @grewn0uille, would you be willing to share the hardships of X/3 when you have time?
Maybe we can solve some of the challenges collectively as a community effort?

[grewn0uille]

Hello again @oneWaveAdrian,

Sorry for the delay. I wanted to check on that but didn’t find time to do it.

The best thing to do to start digging into PDF X/3 (or other X version) is to get the spec, see what WeasyPrint does and doesn’t and find a tool to use to check the PDF X/3 compliance.

[grewn0uille]

Hello!

As it’s soon our 2-year anniversary as CourtBouillon, we opened a short survey to know more about your expectations.
Don’t hesitate to support this feature and give it a boost 🚀!

The survey will be opened until October 10th.

Update: the survey is now closed. You can find the results here.

[grewn0uille]

Hello!

As you may know, two weeks ago was CourtBouillon 3-year anniversary 🎉.

For this occasion, we prepared a short survey to have your opinion on this year’s features and to know what you’d like to see in the future!
Don’t hesitate to give a boost to this feature ✨️

The survey is opened until November 19.

[FelixSchwarz]

Not sure but maybe it is time to close this issue now. WeasyPrint can generated PDF/A-3 compliant PDFs. I guess a lot of smaller things need to be fixed but in general I think at least some level of compliance is possible.

[liZe]

Not sure but maybe it is time to close this issue now. WeasyPrint can generated PDF/A-3 compliant PDFs. I guess a lot of smaller things need to be fixed but in general I think at least some level of compliance is possible.

Even if PDF/A is a great feature, some people may still be interested in PDF/X. This is not at the top of our priorities, but someone would be interested to work on it in the future.