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  2. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    command-line tools to manipulate, edit and convert documents; supports filling of PDF forms with FDF/XFDF data. PDF-XChange Viewer: Freeware: Freeware PDF reader, tagger, editor (simple editions) and converter (free for non-commercial uses). Allows edit of text, draw lines, highlighting of Text, measuring distance. Solid PDF Tools: Proprietary

  3. Chinese Library Classification - Wikipedia

    en.wikipedia.org/wiki/Chinese_Library_Classification

    The Development of Authority Database in National Library of China (NLC), March 2002, Beixin Sun of NLC NLC's classification subject thesaurus database based on CLC. National Bibliographies: the Chinese Experience, 72nd IFLA Conference at Seoul in Korea, August 2006, Ben Gu of NLC An overview of the current situation of the National ...

  4. Category:Free PDF software - Wikipedia

    en.wikipedia.org/wiki/Category:Free_PDF_software

    That is, software which can be freely used, copied, studied, modified, and redistributed by everyone that obtains a copy. Typically, this means software which is distributed with a free software license, and whose source code is available to anyone who receives a copy of the software. Free and open-source software portal

  5. Library classification - Wikipedia

    en.wikipedia.org/wiki/Library_classification

    Library classification systems are one of the two tools used to facilitate subject access. The other consists of alphabetical indexing languages such as Thesauri and Subject Headings systems. The practice of library classification is a form of the more general task of classification. The work consists of two steps.

  6. PDFtk - Wikipedia

    en.wikipedia.org/wiki/Pdftk

    PDFtk (short for PDF Toolkit) is a toolkit for manipulating Portable Document Format (PDF) documents. [ 3 ] [ 4 ] It runs on Linux , Windows and macOS . [ 5 ] It comes in three versions: PDFtk Server ( open-source command-line tool ), PDFtk Free ( freeware ) and PDFtk Pro ( proprietary paid ). [ 2 ]

  7. PDFedit - Wikipedia

    en.wikipedia.org/wiki/PDFedit

    PDFedit is a free PDF editor for Unix-like operating systems (including Cygwin on top of Windows). It does not support editing protected or encrypted PDF files or word processor-style text manipulation, however. [1] PDFedit GUI is based on the Qt 3 toolkit and scripting engine , so every operation is scriptable.

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