Awesome
CamlPDF
CamlPDF is an OCaml library for reading, writing and modifying PDF files. It is the basis of the "CPDF" command line tool and C/C++/Java/Python/.NET/JavaScript API, which is available at http://www.coherentpdf.com/.
License
Copyright Coherent Graphics Ltd 2007 - 2024. Released under the LGPL with special linking exception. See "LICENSE" for details.
To Build
If downloading from Github, obtain the correct source. This means choosing the tag for a particular version, such as "v2.8". The head of the master branch is unstable.
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Run "make". This will build camlpdf.a, camlpdf.cma, camlpdf.cmxa and the documentation (in doc/camlpdf/html).
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If your environment has "ocamlfind", "make install" will install the library. Otherwise, use the built outputs as you will.
Alternatively, you can install the latest version with
opam install camlpdf
Documentation
The API documentation, which is built by the makefile in doc/camlpdf/html, can also be accessed online at http://www.coherentpdf.com/camlpdf.
The file introduction_to_camlpdf.pdf will help the beginner.
Some level of knowledge of the PDF file format itself, which is large, may be required. Useful texts are the author's book:
http://shop.oreilly.com/product/0636920021483.do
and the ISO standard for PDF:
https://www.pdfa-inc.org/product/iso-32000-2-pdf-2-0-bundle-sponsored-access/
Acknowledgments
The file miniz.c is a (very slightly modified) version of the miniz.c zlib implementation by Rich Geldreich, available here:
http://code.google.com/p/miniz/
The files flatestubs.c, pdfflate.ml and pdfflate.mli are a slightly modified version of some parts of CamlZip by Xavier Leroy. The originals are available here:
http://pauillac.inria.fr/~xleroy/software.html
The file rijndael-alg-fst.c was written by Vincent Rijmen, Antoon Bosselaers and Paulo Barreto.
The file sha2.c was written by Olivier Gay.
OCamlMakefile was written by Markus Mottl. It is available here: