Bug 690926

Summary:	Add optional content preservation to pdfwrite
Product:	Ghostscript	Reporter:	Ken Sharp <ken.sharp>
Component:	PDF Writer	Assignee:	Ken Sharp <ken.sharp>
Status:	RESOLVED FIXED
Severity:	enhancement	CC:	christinedelight.top85, tteveris
Priority:	P4
Version:	master
Hardware:	PC
OS:	Windows NT
Customer:		Word Size:	---

Description Ken Sharp 2009-11-17 00:38:39 UTC

The output of pdfwrite currently does not preserve any optional content
contained in an input PDF file. We need to add the possibility to do so.

Comment 1 Alex Cherepanov 2009-11-17 05:53:46 UTC

See bug 690633 for a simple OC handler that just skips invisible content.

Sample files with invisible layers include: comparefiles/BFAX35P5.pdf
and sample files attached to the bugs 689289, 689716, 689924, 690633.

Comment 2 Alex Cherepanov 2009-11-17 20:40:07 UTC

One more file with OC is comparefiles/Bug689290.pdf
The file is identical to the sample file of the bug 689289.

Comment 3 Ken Sharp 2016-08-25 00:43:15 UTC

*** Bug 697063 has been marked as a duplicate of this bug. ***

Comment 4 Ken Sharp 2024-06-13 12:39:25 UTC

This series of commits:

	de0e9e886a45ab30d71a6ff3944c768d99f79767
	647ad9344e825e7495fd5dc4b9d466d37d6f97e8
	d0be5631dde5a67d088b2ec2f6aec2d89065bfa0

implements Optional Content preservation in pdfwrite, as documented in this commit:

	ec6eb8f979d125994679ad1ed295840f9852a4fe

I checked the files from the bugs listed in comment 1 and 2 and these now have optional content preserved in the output.