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81 lines
2.7 KiB
Markdown
81 lines
2.7 KiB
Markdown
pdfio - PDF Read/Write Library
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==============================
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pdfio is a simple C library for reading and writing PDF files. The primary
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goals of pdfio are:
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- Read any PDF file with or without encryption or linearization
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- Write PDF files without encryption or linearization
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- Extract or embed useful metadata (author, creator, page information, etc.)
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- "Filter" PDF files, for example to extract a range of pages or to embed fonts
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that are missing from a PDF
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- Provide access to objects used for each page
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pdfio is *not* concerned with rendering or viewing a PDF file, although a PDF
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RIP or viewer could be written using it.
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Installing pdfio
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----------------
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pdfio comes with a portable makefile that will work on any POSIX-compliant
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system with zlib installed. To make it, run:
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make all
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To test it, run:
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make test
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To install it, run:
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make install
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If you want a shared library, run:
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make all-shared
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make install-shared
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The default installation location is "/usr/local". Pass the `prefix` variable
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to make to install it to another location:
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make install prefix=/some/other/directory
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The makefile installs the pdfio header to "${prefix}/include", the library to
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"${prefix}/lib", the `pkg-config` file to "${prefix}/lib/pkgconfig", the man
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page to "${prefix}/share/man/man3", and the documentation to
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"${prefix}/share/doc".
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The makefile supports the following variables that can be specified in the make
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command or as environment variables:
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- `AR`: the library archiver (default "ar")
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- `ARFLAGS`: options for the library archiver (default "cr")
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- `CC`: the C compiler (default "cc")
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- `CFLAGS`: options for the C compiler (default "")
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- `CODESIGN_IDENTITY`: the identity to use when code signing the shared library
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on macOS (default "Developer ID")
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- `COMMONFLAGS`: options for the C compiler and linker (typically architecture
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and optimization options, default is "-Os -g")
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- `CPPFLAGS`: options for the C preprocessor (default "")
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- `DESTDIR" and "DSTROOT`: specifies a root directory when installing
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(default is "", specify only one)
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- `DSOFLAGS`: options for the C compiler when linking the shared library
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(default "")
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- `LDFLAGS`: options for the C compiler when linking the test programs
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(default "")
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- `LIBS`: library options when linking the test programs (default "-lz")
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- `RANLIB`: program that generates a table-of-contents in a library
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(default "ranlib")
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- `prefix`: specifies the installation directory (default "/usr/local")
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Legal Stuff
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-----------
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pdfio is Copyright © 2021 by Michael R Sweet.
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This software is licensed under the Apache License Version 2.0 with an
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(optional) exception to allow linking against GPL2/LGPL2 software. See the
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files "LICENSE" and "NOTICE" for more information.
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