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| Name | CGM | |
| Full name | Computer Graphics Metafile | PDF - Portable Document Format |
| File extension | .cgm | |
| MIME type | application/pdf, application/x-pdf, application/x-bzpdf, application/x-gzpdf | |
| Developed by | Unknown | Adobe Systems |
| Type of format | Image | Document format |
| Description | This is a vector image format that was developed for supporting the needs of several imaging programs. It was originally used for clip art libraries, but newer revisions of this format (based on the ISO/IEC 8632 standard) are usually used for CAD drawings. CGM files can use binary, character-based or clear-text encoding methods. | The Portable Document Format (PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating systems. Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it. |
| Technical details | The PDF combines three technologies: A subset of the PostScript page description programming language, for generating the layout and graphics. A font-embedding/replacement system to allow fonts to travel with the documents. A structured storage system to bundle these elements and any associated content into a single file, with data compression where appropriate. | |
| Associated programs | ACD Systems Canvas 12, Adobe Illustrator, Autodesk AutoCAD, CADSoftTools ABViewer, Corel PaintShop, CorelDRAW, IMSI TurboCAD Deluxe 18, Informative Graphics MYRIAD Desktop, IrfanView | Adobe Acrobat, Adobe InDesign, Adobe FrameMaker, Adobe Illustrator, Adobe Photoshop, Google Docs, LibreOffice, Microsoft Office, Foxit Reader, Ghostscript. |
| Wiki | https://en.wikipedia.org/wiki/Computer_Graphics_Metafile | https://en.wikipedia.org/wiki/Portable_Document_Format |