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git-svn-id: svn+q:///qpdf/trunk@1011 71b93d88-0707-0410-a8cf-f5a4172ac649
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Jay Berkenbilt 2010-08-10 02:28:08 +00:00
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@ -16,6 +16,20 @@ General
../misc/article-threads.pdf. Email Q-Count: 431864 from
2009-11-03. See also "Splitting by Pages" below.
* Consider writing a PDF merge utility. With 2.2, it would be
possible to have a StreamDataProvider that would allow stream data
to be directly copied from one PDF file to another. One possible
strategy would be to have a program that adds all the pages of one
file to the end of another file. The basic
strategy would be to create a table that adds new streams to the
original file, mapping the new streams' obj/gen to a stream in the
file whose pages are being appended. The StreamDataProvider, when
asked, could simply pipe the streams of the file being appended to
the provided pipeline and could copy the filter and decode
parameters from the original file. Being able to do this requires
a lot of the same logic as being able to do splitting, so a general
split/merge program would be a great addition.
* Provide an option to copy encryption parameters from another file.
This would make it possible to decrypt a file, manually work with
it, and then re-encrypt it using the original encryption parameters