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The PoDoFo library is a free, portable C++ library. It can parse and modify existing PDF files and create new ones from scratch. It also includes several tools to work with PDF files.
It features an unique approach which provides access to PDF documents via an object tree. Therefore, PDFs can be created and or manipulated using a simple tree structure.
Development of PoDoFo has been moved to GitHub: https://github.com/podofo/podofo
Please raise new issues in the GitHub project.
Extensible vector graphics editor with Latex text support.
Ipe is an extensible drawing editor for creating figures in PDF and Postscript format. It supports making small figures for inclusion into LaTeX-documents as well as presentations in PDF.
PS_View is a PostScript and PDF previewer. It is multiplatform (Windows, Linux and Mac OS X), GUI program based on the Ghostscript engine. Key features include huge magnification, fast viewing of large documents, exact measuring, and restart.