Usually it happens when a PDF is modified after being created – the old
(replaced) objects may sit around in the PDF…
From: WMJ <[email protected]<mailto:[email protected]>>
Reply-To: WMJ <[email protected]<mailto:[email protected]>>, Post here
<[email protected]<mailto:[email protected]>>
Date: Thu, 6 Oct 2011 02:17:15 -0700
To: Post here
<[email protected]<mailto:[email protected]>>
Subject: [iText-questions] What are those unused objects in a PDF document
Hello,
I find that there's a RemoveUnusedObjects method in the PdfReader class.
It seems that there can be some objects which are not referenced by other
objects and hence are "unused".
Some PDF files, after processed by the RemoveUnusedObjects, can dramatically
reduce to 30% the size of the original one.
I wondered what's inside those unused objects.
Is it possible to find out what things are in those removed objects?
WMJ
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