PDFiumCore

PDFiumCore is a .NET Standard 2.1 wrapper for the PDFium library which includes the binaries and header pinvoke bindings. Supports Linux-x64, OSX-x64, Win-x64, Win-x86.

Bindings are generated from the binaries and header files created at pdfium-binaries repository.

Usage

The preferred way to use this project is to use the Nuget Package. This will ensure all the proper bindings in the *.deps.json are generated and included for the targeted environments.

Build Requirements

• .NET 6.0

Manual Building

Execute the CreateBindingsPackage.bat

This will do the following:

• Download the specified files at the passed pdfium-binaries API url.
• Extracts the zip & tgz files into the asset/librariesdirectory.
• Opens the pdfium-windows-x64 directory and parses the header files via CppSharp and generates PDFiumCore.cs in the current directory.
• Copies the libraries and licenses into their respective src/PDFiumCore/runtimes directories.
• Copies/Overrides src/PDFiumCore/PDFiumCore.cs with the newly generated PDFiumCore.cs.

PDFiumCoreBindingsGenerator Parameters

PDFiumCoreBindingsGenerator.exe requires the following parameters:

• [0] Set to either a specific Github API release ID for the bblanchon/pdfium-binaries project or latest. This is to determine the release version and binary assets to download.
• [1] Set to true to download the libraries and generate the bindings. Set to false to only download the libraries.
• [2] Version to set the Version.Revision property to. This is used for building patches. Usually set to "0"

ToDo

• Create an actual parser for the comments and generate functional C# method documentation.
• Include documentation for more than just the public methods.
• Investigate ARM builds for inclusion.

Resources

https://pdfium.googlesource.com/pdfium/

https://github.com/bblanchon/pdfium-binaries

https://github.com/mono/CppSharp

License

Matching the PDFium project, this project is released under Apache-2.0 License.