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  2. PDF24 Creator - Wikipedia

    en.wikipedia.org/wiki/PDF24_Creator

    Merge multiple PDF into one file; Rotating, extracting, inserting pages; Integrated preview for PDF editing; PDF encryption, decryption and signing; Change PDF information (author, title, etc.) Compress and shrink PDF files; Add a watermark or stamp a PDF file; Combine pages with a digital paper; Convert to and from PDF; Multiple PDF printers ...

  3. Digital watermarking - Wikipedia

    en.wikipedia.org/wiki/Digital_watermarking

    A digital watermark is called semi-fragile if it resists benign transformations, but fails detection after malignant transformations. Semi-fragile watermarks commonly are used to detect malignant transformations. A digital watermark is called robust if it resists a designated class of transformations. Robust watermarks may be used in copy ...

  4. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    Printing system can render any document to a PDF file, thus any Linux program with print capability can produce PDF files Pdftk: GPLv2: No Yes Yes Command-line tools to merge, split, en-/decrypt, watermark/stamp and manipulate PDF document files. Front end to an older version of the iText library. poppler: GNU GPL: Yes Yes

  5. doPDF - Wikipedia

    en.wikipedia.org/wiki/DoPDF

    The resolution of the created PDF files can be set manually or done automatically. [4] [5] doPDF is freeware which displays advertisements. doPDF is the simplified version of Softland's commercial novaPDF, which offers additional features, including Advanced Encryption Standard, password protection, digital signing, URL links support, text ...

  6. Watermark (data file) - Wikipedia

    en.wikipedia.org/wiki/Watermark_(data_file)

    If the data file to be retrieved is an image, the provider can embed a watermark for protection purposes. The process allows tolerance to some change, while still maintaining an association with the original image file. Researchers have also developed techniques that embed components of the image within the image.

  7. List of virtual printer software - Wikipedia

    en.wikipedia.org/wiki/List_of_virtual_printer...

    Microsoft Office Document Image Writer – Included in Microsoft Office Professional allowing documents to be saved in TIFF or Microsoft Document Imaging Format. MODI is only supported in 32 bit Windows' versions. Universal Document Converter – Creating PDF, JPEG, TIFF, PNG, GIF, PCX, DCX and BMP files. Free version adds watermark.