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  2. Blend modes - Wikipedia

    en.wikipedia.org/wiki/Blend_modes

    This is the standard blend mode which uses the top layer alone, [3] without mixing its colors with the layer beneath it: [example needed] f ( a , b ) = b {\displaystyle f(a,b)=b} where a is the value of a color channel in the underlying layer, and b is that of the corresponding channel of the upper layer.

  3. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Interleaf PrinterLeaf / WorldView document format (now Broadvision QuickSilver) 6E 2B 31 00: n+1: 344 nii Single file NIfTI format, used extensively in biomedical imaging. 6E 69 31 00: ni1: 344 hdr Header file of a .hdr/.img pair in NIfTI format, used extensively in biomedical imaging. 52 41 46 36 34: RAF64: 0 Report Builder file from Digital ...

  4. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    The standard security provided by PDF consists of two different methods and two different passwords: a user password, which encrypts the file and prevents opening, and an owner password, which specifies operations that should be restricted even when the document is decrypted, which can include modifying, printing, or copying text and graphics ...

  5. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    Supports a range of annotation types. Annotations are stored separately from the unmodified PDF file, or (since version 0.15 with Poppler 0.20) can be saved in the document as standard PDF annotations. Evince: GNU GPL: Yes Yes Default PDF and file viewer for GNOME; replaces GPdf. Supports addition and removal (since v3.14), of basic text note ...

  6. List of open file formats - Wikipedia

    en.wikipedia.org/wiki/List_of_open_file_formats

    An open file format is a file format for storing digital data, defined by a published specification usually maintained by a standards organization, and which can be used and implemented by anyone. For example, an open format can be implemented by both proprietary and free and open source software , using the typical software licenses used by each.

  7. File:Bg-11-3547-2014.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Bg-11-3547-2014.pdf

    Original file (1,239 × 1,635 pixels, file size: 3.99 MB, MIME type: application/pdf, 56 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  8. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    The specifications for PDF are backward inclusive. The PDF 1.7 specification includes all of the functionality previously documented in the Adobe PDF Specifications for versions 1.0 through 1.6. Where Adobe removed certain features of PDF from their standard, they are not contained in ISO 32000-1 [9] either. Some features are marked as deprecated.

  9. ICC profile - Wikipedia

    en.wikipedia.org/wiki/ICC_profile

    ISO 15930-5:2003 Graphic technology – Prepress digital data exchange using PDF – Part 5: Partial exchange of printing data using PDF 1.4 (PDF/X-2) ISO 15930-6:2003 Graphic technology – Prepress digital data exchange using PDF – Part 6: Complete exchange of printing data suitable for color-managed workflows using PDF 1.4 (PDF/X-3)