Open source PDF library for C/C++ application?
LibHaru
Haru is a free, cross platform,
open-sourced software library for
generating PDF written in ANSI-C. It
can work as both a static-library (.a,
.lib) and a shared-library (.so,
.dll).
Didn't try it myself, but maybe it can help you
Overlay 2 PDF documents within a C/C++ application
There are plenty of open source and commercial applications that can do this and that have either an SDK or a command-line interface that you could use from C++.
callas pdfToolbox is an example of such an application (but warning, I'm associated with this company). It is also available for Mac, Windows and various Unix / Linux platforms.
My advice would be to more clearly define what exactly you need in terms of tool. Library or command-line? Own code? Free or commercial? Open-source?
To get really useful answers you'll need to provide more information.
Is there a C++ library to extract text from a PDF file like PDFBox for Java?
Xpdf is a C++ application/library which includes tools to extract plain text from a PDF file.
Android PDF Reader & Interactive Library
Try Joan's pdfviewer. You can find it here
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