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Topic: Reverting object values
Conf: (P-PDF) Developers, Msg: 58989
From: toc41
Date: 5/29/2002 05:36 PM

If I modify a value in a dictionary and then modify it back before a PDF file is saved, is there a way to prevent the whole dictionary from being written to the trailer?

For example:

27 0 obj << /Foo << /v0 28 0 R /v1 29 0 R >> >> endobj

is the object I initially see.

I want to change the value of /v1 to point to a different object:

27 0 obj << /Foo << /v0 28 0 R /v1 22 0 R >> >> endobj

Then, before the document is saved to disk, I want to change /v1 back to what it was initially pointing at (i.e. 29 0 R).

I currently attempt this in a plug-in. What I'm seeing is 27 0 obj appearing in the most recent trailer.

Can I prevent all of the indirect object 27 0 from being written to the trailer when the document is saved?


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