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  2. Poppler (software) - Wikipedia

    en.wikipedia.org/wiki/Poppler_(software)

    Poppler is a free and open-source software library for rendering Portable Document Format (PDF) documents. Its development is supported by freedesktop.org. Commonly used on Linux systems, [4] it powers the PDF viewers of the GNOME and KDE desktop environments.

  3. Copyfish - Wikipedia

    en.wikipedia.org/wiki/Copyfish

    Download as PDF; Printable version; In other projects ... After a user marks the text in an image, Copyfish extracts it from a website, video or PDF document ...

  4. Tesseract (software) - Wikipedia

    en.wikipedia.org/wiki/Tesseract_(software)

    Tesseract is an optical character recognition engine for various operating systems. [5] It is free software, released under the Apache License. [1] [6] [7] Originally developed by Hewlett-Packard as proprietary software in the 1980s, it was released as open source in 2005 and development was sponsored by Google in 2006.

  5. Optical character recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_character_recognition

    Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...

  6. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    Desktop application to split, merge, extract pages, rotate and mix PDF documents. PDF Studio: Proprietary: Yes Yes Yes Yes Full feature PDF editor. Poppler-utils: GNU GPL: Yes Yes Unix Yes Converts PDF to other file format (text, images, html). pstoedit: GNU GPL: Yes Yes Unix Yes Converts PostScript to (other) vector graphics file format. QPDF ...

  7. Information extraction - Wikipedia

    en.wikipedia.org/wiki/Information_extraction

    Information extraction. Information extraction (IE) is the task of automatically extracting structured information from unstructured and/or semi-structured machine-readable documents and other electronically represented sources. Typically, this involves processing human language texts by means of natural language processing (NLP). [1]

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