Xpdf is the original open source PDF viewer, first released in 1995.
The XpdfReader project includes Linux and Windows PDF viewer applications, as well as cross-platform (Linux/Windows/Mac) command line tools for text extraction, PostScript conversion, and more.
XpdfWidget/Qt is a PDF viewer widget for the Qt framework. It can be used to embed a PDF viewer into your Qt application.
Supports Qt 4.x and Qt 5.x, with initial support for Qt Quick / QML.
Available for source licensing.
We offer source code licenses for Xpdf. License our high-quality C++ codebase, and add PDF support to your application.
Additional modules are available for:
- Windows viewing/printing
- DeviceN (CMYK + spot color) rasterization, including overprint simulation and color management
- PDF split/merge