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With it you can concatenate pdf files, extract a part of a pdf file as another pdf file, save pages as individual images or pdf files, extract the content text as a text file and generate a tiff multimage file from a pdf file. It need ghostscript previously installed. Enjoy working with it.
ProofReading Markup Language for transmission of corrections
An XML DTD & schema for a ProofReading Markup Language, and reference implementations, to provide for annotation of printed errors and their correction. PRML will be intended for use by proofreaders, editors, and others in the publishing industry.