ImageMagick
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ImageMagick is an open source image processing toolkit. It supports a fairly large number of image file formats, and is useful as a format conversion tool.
ImageMagick includes an "identify" utility that can reveal a lot of information about the file format, and other characteristics of an image.
There is a fork of ImageMagick called GraphicsMagick, which is more stable, but less frequently updated.
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External links
Examples
Converting from one format to another is usually as simple as typing something like:
$ convert example.png example.jpg
For ImageMagick v7+, you may have to use magick, or magick convert, instead of convert.
A more advanced example, to convert to a portable BMP file:
$ convert example.png -alpha remove -compress none BMP3:example.bmp
For information about an image file:
$ identify -verbose example.png
For a list of supported formats:
$ convert -list format
Related formats
Format cross-reference
This is not a complete list of ImageMagick's formats and pseudo-formats, but it is intended to include at least the portable image file formats that ImageMagick natively supports.
The "RW" column indicates read support (R), write support (W), or both (RW).
| Format | RW | Description | Refer to |
|---|---|---|---|
| AAI | RW | AAI Dune image | AAI |
| ART | RW | PFS: 1st Publisher Clip Art | ART (PFS: First Publisher) |
| AVS | RW | AVS X image | AVS X image |
| BMP, BMP2, BMP3 | RW | Microsoft Windows bitmap image | BMP |
| BRF | W | BRF ASCII Braille format | BRF |
| CALS, CAL | RW | Continuous Acquisition and Life-cycle Support Type 1 | CALS raster |
| CIN | RW | Cineon Image File | Cineon |
| CIP | W | Cisco IP phone image format | Cisco IP Phone image |
| CUR | RW | Microsoft icon | CUR |
| CUT | R | DR Halo | Dr. Halo |
| DCM | R | Digital Imaging and Communications in Medicine image | DICOM |
| DCX | RW | ZSoft IBM PC multi-page Paintbrush | DCX |
| DDS, DXT1, DXT5 | RW | Microsoft DirectDraw Surface | DirectDraw Surface |
| DPX | RW | SMPTE 268M-2003 (DPX 2.0) | DPX |
| EPS2, EPS3 | W | Encapsulated PostScript | Encapsulated PostScript |
| EPT, EPT2, EPT3 | RW | Encapsulated PostScript with TIFF preview | Encapsulated PostScript |
| FITS, FTS | RW | Flexible Image Transport System | Flexible Image Transport System |
| G3, FAX | RW | Group 3 FAX | CCITT Group 3 |
| GIF, GIF87 | RW | CompuServe graphics interchange format | GIF |
| GROUP4 | RW | Raw CCITT Group4 | CCITT Group 4 |
| HDR | RW | Radiance RGBE image format | Radiance HDR |
| HRZ | RW | Slow Scan TeleVision | Slow-scan television |
| ICO, ICON | RW | Microsoft icon | ICO |
| IPL | RW | IPL Image Sequence | |
| ISOBRL | W | ISO/TR 11548-1 format | |
| JNG | RW | JPEG Network Graphics | JNG |
| JNX | R | Garmin tile format | |
| JPEG, JPG, PJPEG | RW | Joint Photographic Experts Group JFIF format | JPEG, JFIF |
| MAC | R | MAC Paint | MacPaint |
| MIFF | RW | Magick Image File Format | MIFF |
| MNG | RW | Multiple-image Network Graphics | MNG |
| MPC | RW | Magick Persistent Cache image format | Magick Persistent Cache |
| MTV | RW | MTV Raytracing image format | MTV ray tracer bitmap |
| MVG | RW | Magick Vector Graphics | MVG |
| OTB | RW | On-the-air bitmap | OTA bitmap |
| PALM | RW | Palm pixmap | Palm bitmap |
| PAM | RW | Common 2-dimensional bitmap format | PAM (Portable Arbitrary Map) |
| PBM, PGM, PPM, PNM | RW | Portable bitmap, ... | Netpbm formats |
| PCD, PCDS | RW | Photo CD | Photo CD |
| PCX | RW | ZSoft IBM PC Paintbrush | PCX |
| PDB | RW | Palm Database ImageViewer Format | Palm Database ImageViewer |
| PES | R | Embrid Embroidery Format | PES |
| PFM | RW | Portable float format | PFM (Portable Float Map) |
| PICT, PCT | RW | Apple Macintosh QuickDraw/PICT | PICT |
| PIX | R | Alias/Wavefront RLE image format | Alias PIX, Vivid IMG |
| PNG, PNG8, ... | RW | Portable Network Graphics | PNG |
| PS2, PS3 | W | PostScript | PostScript |
| PSB | RW | Adobe Large Document Format | PSB |
| PSD | RW | Adobe Photoshop bitmap | PSD |
| RAS, SUN | RW | SUN Rasterfile | Sun Raster |
| RGF | RW | LEGO Mindstorms EV3 Robot Graphic Format | |
| RLA | R | Alias/Wavefront image | RLA |
| RLE | R | Utah Run length encoded image | Utah RLE |
| SCR | R | ZX-Spectrum SCREEN$ | SCR (ZX Spectrum) |
| SCT | R | Scitex HandShake | Scitex CT |
| SFW, PWP | R | Seattle Film Works | Seattle FilmWorks |
| SGI | RW | Irix RGB image | SGI (image file format) |
| SIX, SIXEL | RW | DEC SIXEL Graphics Format | Sixel |
| TGA, ICB, VDA, VST | RW | Truevision Targa image | TGA |
| TIFF, PTIF | RW | Tagged Image File Format | TIFF |
| TIFF64 | RW | Tagged Image File Format (64-bit) | BigTIFF |
| TIM | R | PSX TIM | TIM (PlayStation graphics) |
| UBRL | W | Unicode Text format | |
| UIL | W | X-Motif UIL table | |
| VICAR | RW | VICAR rasterfile format | VICAR |
| VIFF, XV | RW | Khoros Visualization image | VIFF |
| VIPS | RW | VIPS image | VIPS |
| WBMP | RW | Wireless Bitmap (level 0) image | WBMP |
| WPG | R | Word Perfect Graphics | WordPerfect Graphics |
| XBM | RW | X Windows system bitmap | XBM |
| XCF | R | GIMP image | XCF |
| XPM | RW | X Windows system pixmap | XPM |
| XWD | RW | X Windows system window dump | XWD |
| Format | RW | Refer to |
|---|---|---|
| A, B, C, CMYK, CMYKA, G, GRAY, K, M, MONO, O, PAL, R, RGB, RGBA, RGBO, UYVY, Y, YCbCr, YCbCrA, YUV | RW | Raw bitmap |
