On 27/12/2012 17:56, Marcos de Carvalho Monteiro wrote:
I'm using ITextSharp version 5.3.5 to PDF signing and annotating.
Recently I received just one PDF file which is being corrupted by my
annotation procedure specifically from the second page.
I've found the cause. PdfReader has a method "eliminateSharedStreams()".
This method duplicates any content streams that are shared between
pages. I think it was introduced for a specific reason: if you have
shared streams and you want to change something to one page, the change
will also occur in all the other pages that share the stream.
When using append mode and more specifically when signing, you don't
want to change anything to the content. In this case, the method doesn't
make any sense.
I'll look at the SVN repository when it was introduced, and I may make
the method optional (it not being called by default).
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