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*.1.dylib
*.a
*.o
*.so
/testpdfio

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Apache License
Version 2.0, January 2004
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END OF TERMS AND CONDITIONS
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#
# Makefile for pdfio.
#
# Copyright © 2021 by Michael R Sweet.
#
# Licensed under Apache License v2.0. See the file "LICENSE" for more
# information.
#
# POSIX makefile
.POSIX:
# Variables...
AR = ar
ARFLAGS = cr
CC = cc
CFLAGS =
CODESIGN_IDENTITY = Developer ID
COMMONFLAGS = -Os -g
CPPFLAGS =
DESTDIR = $(DSTROOT)
DSO = cc
DSOFLAGS =
DSONAME =
LDFLAGS =
LIBS = -lz
RANLIB = ranlib
VERSION = 1.0
prefix = /usr/local
# Base rules
.SUFFIXES: .c .h .o
.c.o:
$(CC) $(CFLAGS) $(CPPFLAGS) $(COMMONFLAGS) -c $<
# Files
LIBOBJS = \
pdfio-common.o \
pdfio-read.o \
pdfio-write.o
OBJS = \
$(LIBOBJS) \
testpdfio.o
TARGETS = \
$(DSONAME) \
libpdfio.a \
testpdfio
# Make everything
all: $(TARGETS)
all-shared:
if test `uname` = Darwin; then \
$(MAKE) DSONAME="libpdfio.1.dylib" -$(MAKEFLAGS) all; \
else
$(MAKE) DSONAME="libpdfio.so.1" -$(MAKEFLAGS) all; \
fi
# Clean everything
clean:
rm -f $(TARGETS) $(OBJS)
# Install everything
install: $(TARGETS)
-mkdir -p $(DESTDIR)$(prefix)/include
cp pdfio.h $(DESTDIR)$(prefix)/include
-mkdir -p $(DESTDIR)$(prefix)/lib
cp libpdfio.a $(DESTDIR)$(prefix)/lib
$(RANLIB) $(DESTDIR)$(prefix)/lib/libpdfio.a
if test "x$(DSONAME)" = xlibpdfio.so.1; then \
cp $(DSONAME) $(DESTDIR)$(prefix)/lib; \
ln -sf libpdfio.so.1 $(DESTDIR)$(prefix)/lib/libpdfio.so; \
elif test "x$(DSONAME)" = xlibpdfio.1.dylib; then \
cp $(DSONAME) $(DESTDIR)$(prefix)/lib; \
codesign -s "$(CODESIGN_IDENTITY)" -o runtime --timestamp $(DESTDIR)$(prefix)/lib/libpdfio.1.dylib; \
ln -sf libpdfio.1.dylib $(DESTDIR)$(prefix)/lib/libpdfio.dylib; \
fi
-mkdir -p $(DESTDIR)$(prefix)/lib/pkgconfig
echo '"prefix="$(prefix)"' >>$(DESTDIR)$(prefix)/lib/pkgconfig/pdfio.pc
cat pdfio.pc.in >$(DESTDIR)$(prefix)/lib/pkgconfig/pdfio.pc
-mkdir -p $(DESTDIR)$(prefix)/share/doc
cp pdfio.html LICENSE NOTICE $(DESTDIR)$(prefix)/share/doc
-mkdir -p $(DESTDIR)$(prefix)/share/man/man3
cp pdfio.3 LICENSE NOTICE $(DESTDIR)$(prefix)/share/man/man3
install-shared:
if test `uname` = Darwin; then \
$(MAKE) DSONAME="libpdfio.1.dylib" -$(MAKEFLAGS) install; \
else
$(MAKE) DSONAME="libpdfio.so.1" -$(MAKEFLAGS) install; \
fi
# Test everything
test: testpdfio
./testpdfio
# pdfio library
libpdfio.a: $(LIBOBJS)
$(AR) $(ARFLAGS) $@ $(LIBOBJS)
$(RANLIB) $@
libpdfio.so.1: $(LIBOBJS)
$(CC) $(DSOFLAGS) $(COMMONFLAGS) -shared -o $@ -Wl,soname,$@ $(LIBOBJS) $(LIBS)
libpdfio.1.dylib: $(LIBOBJS)
$(CC) $(DSOFLAGS) $(COMMONFLAGS) -dynamiclib -o $@ -install_name $(prefix)/lib/$@ -current_version $(VERSION) -compatibility_version 1.0 $(LIBOBJS) $(LIBS)
# pdfio test program
testpdfio: testpdfio.o libpdfio.a
$(CC) $(LDFLAGS) $(COMMONFLAGS) -o $@ testpdfio.o libpdfio.a $(LIBS)
# Dependencies
$(OBJS): pdfio.h Makefile
# Make documentation using Codedoc <https://www.msweet.org/codedoc>
DOCFLAGS = \
--author "Michael R Sweet" \
--copyright "Copyright (c) 2021 by Michael R Sweet" \
--docversion $(VERSION)
doc:
codedoc $(DOCFLAGS) --title "pdfio Programming Manual" pdfio.h $(LIBOBJS:.o=.c) --body pdfio.md pdfio.xml >pdfio.html
codedoc $(DOCFLAGS) --title "pdf read/write library" --man pdfio --section 3 --body pdfio.md pdfio.xml >pdfio.3
rm -f pdfio.xml

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pdfio - PDF Read/Write Library
Copyright © 2021 by Michael R Sweet.
(Optional) Exceptions to the Apache 2.0 License:
================================================
As an exception, if, as a result of your compiling your source code, portions
of this Software are embedded into an Object form of such source code, you
may redistribute such embedded portions in such Object form without complying
with the conditions of Sections 4(a), 4(b) and 4(d) of the License.
In addition, if you combine or link compiled forms of this Software with
software that is licensed under the GPLv2 ("Combined Software") and if a
court of competent jurisdiction determines that the patent provision (Section
3), the indemnity provision (Section 9) or other Section of the License
conflicts with the conditions of the GPLv2, you may retroactively and
prospectively choose to deem waived or otherwise exclude such Section(s) of
the License, but only in their entirety and only with respect to the Combined
Software.

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

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//
// Common support functions for pdfio.
//
// Copyright © 2021 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
//
// Include necessary headers...
//
#include "pdfio-private.h"

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//
// Private header file for pdfio.
//
// Copyright © 2021 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
#ifndef PDFIO_PRIVATE_H
# define PDFIO_PRIVATE_H
//
// Include necessary headers...
//
//
// Visibility and other annotations...
//
# if defined(__has_extension) || defined(__GNUC__)
# define PDFIO_INTERNAL __attribute__ ((visibility("hidden")))
# define PDFIO_PRIVATE __attribute__ ((visibility("default")))
# define PDFIO_NONNULL(...) __attribute__ ((nonnull(__VA_ARGS__)))
# define PDFIO_NORETURN __attribute__ ((noreturn))
# else
# define PDFIO_INTERNAL
# define PDFIO_PRIVATE
# define PDFIO_NONNULL(...)
# define PDFIO_NORETURN
# endif // __has_extension || __GNUC__
//
// Debug macro...
//
# ifdef DEBUG
# define PDFIO_DEBUG(...) fprintf(stderr, __VA_ARGS__)
# else
# define PDFIO_DEBUG(...)
# endif // DEBUG
//
// Types and constants...
//
//
// Functions...
//
#endif // !PDFIO_PRIVATE_H

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//
// PDF reading functions for pdfio.
//
// Copyright © 2021 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
//
// Include necessary headers...
//
#include "pdfio-private.h"

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//
// PDF writing functions for pdfio.
//
// Copyright © 2021 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
//
// Include necessary headers...
//
#include "pdfio-private.h"

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//
// Public header file for pdfio.
//
// Copyright © 2021 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
#ifndef PDFIO_H
# define PDFIO_H
//
// Include necessary headers...
//
//
// C++ magic...
//
# ifdef __cplusplus
extern "C" {
# endif // __cplusplus
//
// Visibility and other annotations...
//
# if defined(__has_extension) || defined(__GNUC__)
# define PDFIO_PUBLIC __attribute__ ((visibility("default")))
# define PDFIO_FORMAT(a,b) __attribute__ ((__format__(__printf__, a,b)))
# else
# define PDFIO_PUBLIC
# define PDFIO_FORMAT(a,b)
# endif // __has_extension || __GNUC__
//
// Types and constants...
//
//
// Functions...
//
//
// C++ magic...
//
# ifdef __cplusplus
}
# endif // __cplusplus
#endif // !PDFIO_H

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Introduction
============
pdfio is a simple C library for reading and writing PDF files. The primary
goals of pdfio are:
- Read any PDF file with or without encryption or linearization
- Write PDF files without encryption or linearization
- Extract or embed useful metadata (author, creator, page information, etc.)
- "Filter" PDF files, for example to extract a range of pages or to embed fonts
that are missing from a PDF
- Provide access to objects used for each page
pdfio is *not* concerned with rendering or viewing a PDF file, although a PDF
RIP or viewer could be written using it.

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Name: pdfio
Description: PDF read/write library
Version: 1.0
URL: https://www.msweet.org/pdfio
Requires.private: zlib >= 1.0
Libs: -L${prefix}/lib -lpdfio
Cflags: -I${prefix}/include

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//
// Test program for pdfio.
//
// Copyright © 2021 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
//
//
// Include necessary headers...
//
#include "pdfio.h"
//
// 'main()' - Main entry for test program.
//
int // O - Exit status
main(int argc, // I - Number of command-line arguments
char *argv[]) // I - Command-line arguments
{
(void)argc;
(void)argv;
return (0);
}