OpenSystemsDevelopment / qpdf

Commit f9d0f58e90122f65f56646ce387de9cde080e920

Authored by Jay Berkenbilt
1 parent bd7261da

merge notes 

git-svn-id: svn+q:///qpdf/trunk@1011 71b93d88-0707-0410-a8cf-f5a4172ac649
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16 16 ../misc/article-threads.pdf. Email Q-Count: 431864 from
17 17 2009-11-03. See also "Splitting by Pages" below.
18 18  
  19 + * Consider writing a PDF merge utility. With 2.2, it would be
  20 + possible to have a StreamDataProvider that would allow stream data
  21 + to be directly copied from one PDF file to another. One possible
  22 + strategy would be to have a program that adds all the pages of one
  23 + file to the end of another file. The basic
  24 + strategy would be to create a table that adds new streams to the
  25 + original file, mapping the new streams' obj/gen to a stream in the
  26 + file whose pages are being appended. The StreamDataProvider, when
  27 + asked, could simply pipe the streams of the file being appended to
  28 + the provided pipeline and could copy the filter and decode
  29 + parameters from the original file. Being able to do this requires
  30 + a lot of the same logic as being able to do splitting, so a general
  31 + split/merge program would be a great addition.
  32 +
19 33 * Provide an option to copy encryption parameters from another file.
20 34 This would make it possible to decrypt a file, manually work with
21 35 it, and then re-encrypt it using the original encryption parameters
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