QPDF is a command-line program that does structural, content-preserving transformations on PDF files. It could have been called something like pdf-to-pdf. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work.
QPDF is capable of creating linearized (also known as web-optimized) files and encrypted files. It is also capable of converting PDF files with object streams (also known as compressed objects) to files with no compressed objects or to generate object streams from files that don't have them (or even those that already do). QPDF also supports a special mode designed to allow you to edit the content of PDF files in a text editor.
This utility allows the user to export his own Address Book in one CSV file.
Edits audio files with the option for CD mastering.
This program enables you to convert video files to various output profiles.
This program lets you convert videos to various media formats.
CoverScout fills the gray gaps that iTunes leaves behind!
Rips media from DVD and creates disk copies.
Rip DVD discs to the desired file format.
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