remove CIDSets from XObjects

[mr-mister123]

fixes #659

do you need example-files for testing?

Greetz, Karsten

[jstaerk]

Closing because for me it looks like an attempt to correct something in invalid PDF-A input files, correct? As that matter is far too complicated I would not start even trying that.

[mr-mister123]

Closing because for me it looks like an attempt to correct something in invalid PDF-A input files, correct?

No, i don't think so. According to #249 you've decided to let mustang convert pdf/a-1 to pdf/a-3 and therefore removing the cid-sets from embedded fonts with commit #df83c30.

Apparently "The rules for incomplete CID sets changed between PDF/A-1a and PDF/A-3a. They are stricter in PDF/A-3a", but PDF/A-3 works completely fine without CIDsets, so the I'm now removing them.

( see )

The only thing i changed is, that your patch is not only applied to the fonts in the root-dictionary, but also to object that are embedded into the pdf (eg. when merging pdf-files). So for me it's just the consequent implementation of your built-in-support for converting pdf/a-1 to pdf/a-3.
Your original algorithm has not been changed, it's just consequently applied to all embedded fonts.

I could supply sample-files if needed.

Greetz,
Karsten