The XpdfImageExtract™ library/component provides access to the
images in PDF files. It can extract the images to memory or disk, as
well as simply generating a list of the images along with their size
and color space information
The XpdfText® library/component extracts plain text from PDF
files. The PDF file can be on disk or in memory, and likewise, the
text can be extracted to memory or directly to disk.
The XpdfWidget/Qt™ class provides a PDF file viewer widget for
the Qt cross-platform GUI
framework. XpdfWidget can be used to add PDF viewing capability
to a Qt app on Windows, Linux, Embedded Linux, and MacOS.