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2. List of archive formats - Wikipedia

   en.wikipedia.org/wiki/List_of_archive_formats

   file format from NoGate Consultings, a rival from ARC-Compressor. .pak was also briefly used by the short lived MSDOS PKPAK program. .partimg PartImage: Multiple Multiple Yes A disk image archive format that supports several compression methods as well as splitting the archive into smaller pieces. .paq6, .paq7, .paq8 and variants PAQ: Unix-like ...

3. Image file format - Wikipedia

   en.wikipedia.org/wiki/Image_file_format

   An image file format is a file format for a digital image. There are many formats that can be used, such as JPEG, PNG, and GIF. Most formats up until 2022 were for storing 2D images, not 3D ones. The data stored in an image file format may be compressed or uncompressed.

4. JPEG File Interchange Format - Wikipedia

   en.wikipedia.org/wiki/JPEG_File_Interchange_Format

   The JPEG standard used for the compression coding in JFIF files does not define which color encoding is to be used for images. JFIF defines the color model to be used: either Y for greyscale, or YCbCr derived from RGB color primaries as defined in CCIR 601 (now known as Rec. ITU-R BT.601), except with a different "full range" scaling of the Y ...

5. Image conversion - Wikipedia

   en.wikipedia.org/wiki/Image_conversion

   Besides uncompressed formats and lossless compression formats that can usually be interconverted without any loss of detail, there are compressed formats such as JPEG, which lose detail on nearly every compress. While a conversion from a compressed to an uncompressed format is in general without loss, this is not true the other way around.

6. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   Utility library for rendering Portable Document Format (PDF) documents. poppler-utils includes command-line tools to extract images from a PDF (pdfimages) and convert a PDF to other formats (pdftohtml, pdftotext, pdftoppm). ps2pdf: GNU AGPL: Yes Part of Ghostscript; converts a PostScript file to a PDF. SWFTools: GNU GPL: Yes

7. Image compression - Wikipedia

   en.wikipedia.org/wiki/Image_compression

   The best image quality at a given compression rate (or bit rate) is the main goal of image compression, however, there are other important properties of image compression schemes: Scalability generally refers to a quality reduction achieved by manipulation of the bitstream or file (without decompression and re-compression).