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| Name | BMP | AI |
| Full name | BMP - Microsoft Windows bitmap | AI - Adobe Illustrator Artwork |
| File extension | .bmp, .dib | .ai |
| MIME type | image/bmp, image/x-bmp | application/post-script |
| Developed by | Microsoft | Adobe Systems |
| Type of format | Raster graphics | Vector image format |
| Description | The BMP file format, also known as bitmap image file or device independent bitmap (DIB) file format or simply a bitmap, is a raster graphics image file format used to store bitmap digital images, independently of the display device, especially on Microsoft Windows and OS/2 operating systems. | Adobe Illustrator Artwork (AI) is a proprietary file format developed by Adobe Systems for representing single-page vector-based drawings in either the EPS or PDF formats. The .ai filename extension is used by Adobe Illustrator. The AI file format was originally a native format called PGF. PDF compatibility is achieved by embedding a complete copy of the PGF data within the saved PDF format file. |
| Technical details | The bitmap image file consists of fixed-size structures as well as variable-size structures appearing in a predetermined sequence. Many different versions of some of these structures can appear in the file, due to the long evolution of this file format. | The same "dual path" approach as for PGF is used when saving EPS-compatible files in recent versions of Illustrator. Early versions of the AI file format are true EPS files with a restricted, compact syntax, with additional semantics represented by Illustrator-specific DSC comments that conform to DSC's Open Structuring Conventions. |
| Associated programs | Microsoft Paint, Adobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET. | Adobe After Effects, Cinema 4D, CorelDRAW, Corel Paint Shop Pro, Ghostscript, Inkscape. |
| Wiki | https://en.wikipedia.org/wiki/BMP_file_format | https://en.wikipedia.org/wiki/Adobe_Illustrator_Artwork |