8b2b013b36
When exploring a PDF, it may be convenient to have the typical informations delivered by some "Document Properties"---and some more about the MediaBox(es). So just add the function to get the ModDate and extend the pdfioinfo example as an example of what the library do have and pdfioinfo as a debugging tool also. Signed-off-by: Thierry LARONDE <tlaronde@kergis.com>
pdfio - PDF Read/Write Library
PDFio is a simple C library for reading and writing PDF files. The primary goals of PDFio are:
- Read and write any version of PDF file
- Provide access to pages, objects, and streams within a PDF file
- Support reading and writing of encrypted PDF files
- 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.
Requirements
PDFio requires the following to build the software:
- A C99 compiler such as Clang, GCC, or MS Visual C
- A POSIX-compliant
makeprogram - ZLIB (https://www.zlib.net) 1.1 or higher
IDE files for Xcode (macOS/iOS) and Visual Studio (Windows) are also provided.
Documentation
See the man page (pdfio.3) and full HTML documentation (pdfio.html) for
information on using PDFio.
Installing PDFio
PDFio uses a configure script on Unix systems to generate a makefile:
./configure
If you want a shared library, run:
./configure --enable-shared
The default installation location is "/usr/local". Pass the --prefix option
to make to install it to another location:
./configure --prefix=/some/other/directory
Once configured, run the following to make the library:
make all
To test it, run:
make test
To install it, run:
sudo make install
Visual Studio Project
The Visual Studio solution ("pdfio.sln") is provided for Windows developers and
generates the PDFIO1 DLL. You can also use NuGet to install the pdfio_native
package.
Xcode Project
There is also an Xcode project ("pdfio.xcodeproj") you can use on macOS which generates a static library that will be installed under "/usr/local" with:
sudo xcodebuild install
Legal Stuff
PDFio is Copyright © 2021-2025 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.