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2. Image compression - Wikipedia

   en.wikipedia.org/wiki/Image_compression

   Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission. Algorithms may take advantage of visual perception and the statistical properties of image data to provide superior results compared with generic data compression methods which are used for other digital data.

3. Affinity Photo - Wikipedia

   en.wikipedia.org/wiki/Affinity_Photo

   Affinity Photo has been described as an Adobe Photoshop alternative, and is compatible with common file formats such as Adobe's PSD (including Photoshop Smart Objects). [9] [10] [11] Functionality includes RAW processing, color space options, live preview of effects, image stitching, alpha compositing, black point compensation, and optical aberration corrections. [2]

4. JPEG - Wikipedia

   en.wikipedia.org/wiki/JPEG

   This is an accepted version of this page This is the latest accepted revision, reviewed on 9 February 2025. Lossy compression method for reducing the size of digital images For other uses, see JPEG (disambiguation). "JPG" and "Jpg" redirect here. For other uses, see JPG (disambiguation). JPEG A photo of a European wildcat with the compression rate, and associated losses, decreasing from left ...

5. PDF - Wikipedia

   en.wikipedia.org/wiki/PDF

   Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.

6. Comparison of graphics file formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_graphics...

   application/pdf PEF: PENTAX RAW PENTAX TIFF .pef PGF: Progressive Graphics File xeraina GmbH .pgf Photographic images, eventual replacement for JPEG. Yes PGM: Portable Graymap File Format ASCII.pgm image/x-portable-graymap Yes PGML: Precision Graphics Markup Language Adobe Systems, IBM, Netscape, Sun Microsystems: Yes PICT: Macintosh PICT ...

7. CamScanner - Wikipedia

   en.wikipedia.org/wiki/CamScanner

   CamScanner is a Chinese mobile app first released in 2010 [1] [2] that allows iOS and Android devices to be used as image scanners. [3] It allows users to 'scan' documents (by taking a photo with the device's camera) and share the photo as either a JPEG or PDF.

8. Help : How to reduce colors for saving a JPEG as PNG

   en.wikipedia.org/wiki/Help:How_to_reduce_colors...

   If the new version is too sharp, you can utilize the blur filter or tool to fix this, or use Colors > Levels to mess with the Alpha channel. Once it looks correct, save the image as a PNG. Then, to reduce file size, run it through a program like ImageMagick that supports 8-bit PNGs with alpha transparency, in order to remove any unnecessary ...

9. Adobe Inc. - Wikipedia

   en.wikipedia.org/wiki/Adobe_Inc.

   Adobe kept the PDF as a proprietary file format from its introduction until 2008, when the PDF became an ISO international standard under ISO number ISO 32000-1:2008, though the PDF file format was free for viewers since its introduction. [23] [24]