Image files
In this section you will find a list of the most common image file formats, complete with a desciption. In a later stadium we will add a complete list of software, how to convert the image files and so on...
ADRG (ARC Digitized Raster Graphics: .adrg)
The ADRG-format comprises data originally produced by the National Imagery and Mapping Agency (NIMA) in the United States. These data are derived from one or more paper graphic products transformed into digital data by raster scanning at a nominal resolution of 100 microns (254 lpi) and in 24-bit RGB color.
AI (Adobe Illustrator Document Adobe Systems, .ai)
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.
ART (ART, .art)
ART is a proprietary image file format used mostly by the America Online (AOL) client software. The ART format (file extension ".art") holds a single still image that has been highly compressed. Originally, the compression was developed by the Johnson-Grace Company, which was then acquired by the AOL service.
BMP (Windows bitmap, .bmp)
The BMP file format, sometimes called bitmap or DIB file format (for device-independent bitmap), is an image file format used to store bitmap digital images, especially on Microsoft Windows and OS/2 operating systems.
CADRG Compressed (ARC Digitized Raster Graphics, .cadrg)
CADRG (Compressed ARC Digitized Raster Graphics) is a general-purpose product, comprising computer-readable digital map and chart images. CADRG data is derived directly from ADRG and other digital sources through downsampling, filtering, compression, and reformatting to the Raster Product Format (RPF) Standard.
CDR (CorelDRAW Document Corel Corporation, .cdr)
CorelDRAW is a vector graphics editor developed and marketed by Corel Corporation of Ottawa, Canada. It is also the name of Corel's Graphics Suite. Its latest version, named X4 (14), was released in January 2008.
CGM (Computer Graphics Metafile, .cgm)
Computer Graphics Metafile (CGM) is a file format for 2D vector graphics, raster graphics, and text, and is defined by ISO/IEC 8632. All graphical elements can be specified in a textual source file that can be compiled into a binary file or one of two text representations.
CIN (Cineon, .cin)
The Cineon file format was designed specifically to represent scanned film images, and it has some interesting differences from other formats such as TIFF and JPEG.
The pixel data represents "printing density", the density that is seen by the print film.
CPC (Cartesian Perceptual Compression Cartesian Products, .cpc / .cpi)
Cartesian Perceptual Compression (abbreviated CPC) is a file format specifically designed for the compression of black-and-white raster images in document image storage and transmission systems. The format is also effective in the compression of black-and-white photographs and line art.
CPT (Corel Photo-Paint Image, .cpt)
.CPT is the file extension for files used by Photo Paint, a raster graphics editor created by Corel. The current version is Corel PHOTO-PAINT X3 (13). It is not sold by itself, but instead included with CorelDRAW (CorelDRAW Graphics Suite). Its main uses are image manipulation and creation of web graphics.
DNG (Digital Negative Adobe Systems, .dng)
The Digital Negative (DNG) is a publicly available archival format for the raw files generated by digital cameras. By addressing the lack of an open standard for the raw files created by individual camera models, DNG helps ensure that photographers will be able to access their files in the future.
DPX (Digital Picture eXchange file format, .dpx)
Digital Picture Exchange (DPX) is a common file format for digital film work and is an ANSI/SMPTE standard (268M-2003).
ECW (Enhanced Compressed Wavelet File, .ecw)
ECW (Enhanced Compression Wavelet) is an open standard wavelet compression image format developed by Earth Resource Mapping. The file format is optimized for aerial and satellite imagery, and efficiently compresses very large images with fine, alternating contrast. This is a lossy compression format.
EMF (Windows Enhanced Metafile, .emf)
Windows Metafile (WMF) is a graphics file format on Microsoft Windows systems, originally designed in the early 1990s and not commonly used after the rise of the World Wide Web and the widely used graphics formats such as GIF and JPEG. It is a vector graphics format which also allows the inclusion of raster graphics.
EXR (OpenEXR ILM, .exr)
OpenEXR is a high dynamic range imaging image file format, released as an open standard along with a set of software tools created by Industrial Light and Magic, released under a free software license similar to the BSD license.
FPX (FlashPix (1.0.2), .fpx)
FlashPix is a bitmapped Computer graphics file format where the image is saved in more than one resolution.
GIF (Graphics Interchange Format, .gif)
The Graphics Interchange Format (GIF) is an 8-bit-per-pixel bitmap image format that was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability.
HD Photo (HD Photo Microsoft, .wdp, .hdp)
HD Photo (formerly Windows Media Photo) is a still-image compression algorithm and file format for continuous tone photographic images, developed by Microsoft as a part of the Windows Media family. It supports lossy as well as lossless compression, and is the preferred image format for Microsoft's XPS documents.
IGS (Initial Graphics Exchange Specification, .gs)
The Initial Graphics Exchange Specification (IGES) (pronounced eye-jess) defines a neutral data format that allows the digital exchange of information among Computer-aided design (CAD) systems.
ILBM (InterLeaved BitMap, .iff, .ilbm, .lbm)
ILBM is a subtype of the Interchange File Format (IFF) used for storing picture data. ILBM stands for InterLeaved BitMap which refers to the way the pictures are stored. The image data is stored as a varying number of bitplanes, each storing one bit of data for each pixel in the image.
JPEG (Joint Photographic Experts Group, .jpg, .jpeg)
JPEG is a commonly used method of compression for photographic images. The name JPEG stands for Joint Photographic Experts Group, the name of the committee that created the standard. The group was organized in 1986, issuing a standard in 1992, which was approved in 1994 as ISO 10918-1.
JPEG 2000 (Joint Photographic Experts Group 2000, .jp2, .j2c)
JPEG 2000 is a wavelet-based image compression standard. It was created by the Joint Photographic Experts Group committee in the year 2000 with the intention of superseding their original discrete cosine transform-based JPEG standard (created about 1991). The standardized filename extension is .
MNG (Multiple-image Network Graphics, .mng)
Multiple-image Network Graphics (.MNG) is a public graphics file format for animated images.
MNG is closely related to the PNG image format. When PNG development started in early 1995, developers decided not to incorporate support for animation, not least because this feature of GIF was seldom used at the time.
ODG (OpenDocument drawing, .odg)
The OpenDocument format (ODF, ISO/IEC 26300, full name: OASIS Open Document Format for Office Applications) is a file format for electronic office documents, such as spreadsheets, charts, presentations and word processing documents.
PBM (Portable Bitmap File Format, .pbm)
The portable pixmap file format (PPM), the portable graymap file format (PGM) and the portable bitmap file format (PBM) specify rules for exchanging graphics files. They provide very basic functionality and serve as a least-common-denominator for converting pixmap, graymap, or bitmap files between different platforms.
PCX (ZSoft PC Paintbrush File, .pcx)
PCX is an image file format developed by the ZSoft Corporation of Marietta, Georgia, USA.
PGF (Progressive Graphics File xeraina, .pgf)
PGF (Progressive Graphics File) is a wavelet-based bitmapped image format that employs lossless and lossy data compression. PGF was created to improve upon and replace the JPEG format. It was developed at the same time as JPEG 2000 but with a different focus: speed over compression ratio.
PGM (Portable Graymap File Format, .pgm)
The portable pixmap file format (PPM), the portable graymap file format (PGM) and the portable bitmap file format (PBM) specify rules for exchanging graphics files. They provide very basic functionality and serve as a least-common-denominator for converting pixmap, graymap, or bitmap files between different platforms.
PICT (PICT Apple Computer, .pict, .pic, .pct)
PICT is a graphics file format introduced on the original Apple Macintosh computer as its standard metafile format. It allows the interchange of graphics (both bitmapped and vector), and some limited text support, between Mac applications, and was the native graphics format of QuickDraw.
Pixel (Pixel image format, .px)
The pixel image format (.px) is the image format used by Pixel image editor (formerly known as Pixel32). Pixel image editor is an image editor written by the Slovakian programmer Pavel Kanzelsberger. It is arguably the most notable application written with Free Pascal, though it is not free software.
PNG (Portable Network Graphics, .png)
Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace the GIF format, as an image-file format not requiring a patent license. The PNG initialism is optionally recursive, unofficially standing for "PNG's Not GIF".
PPM (Portable Pixmap File Format, .ppm)
The portable pixmap file format (PPM), the portable graymap file format (PGM) and the portable bitmap file format (PBM) specify rules for exchanging graphics files. They provide very basic functionality and serve as a least-common-denominator for converting pixmap, graymap, or bitmap files between different platforms.
PSD (Photoshop Document, .psd, .psb, .pdd)
.PSD is the native format of Adobe Photoshop.
PSP (Paint Shop Pro Document, .psp)
Paint Shop Pro Document (.PSP) is the native image format of Paint Shop Pro. Paint Shop Pro is a bitmap graphics editor and vector graphics editor for computers running the Microsoft Windows operating system that was originally published by Minneapolis-based Jasc Software.
SGI (Silicon Graphics Image, .sgi, .rgb, .rgba, .int, .inta, .bw)
Silicon Graphics Image (SGI) or the RGB file format is the native raster graphics file format for Silicon Graphics workstations.
SVG (Scalable Vector Graphics, .svg, .svgz)
Scalable Vector Graphics (SVG) is an XML specification and file format for describing two-dimensional vector graphics, both static and animated. SVG can be purely declarative or may include scripting. Images can contain hyperlinks using outbound simple XLinks.
SXD (OpenOffice.org 1.0 drawing format, .sxd)
SXD is a image file format used by OpenOffice.org Draw, a vector graphics editor. OpenOffice.org Draw is comparable to CorelDRAW in features and is part of the OpenOffice.org office suite.
TGA (Truevision Targa, .tga, .tpic)
Truevision's (now Pinnacle Systems) TGA File Format, often referred to as TARGA File Format, is a raster graphics file format. It was the native format of Truevision Inc.'s TARGA and VISTA boards, which were the first graphic cards for IBM-compatible PCs to support Highcolor/truecolor display.
TIFF (Tagged Image File Format, .tiff, .tif)
Tagged Image File Format (abbreviated TIFF) is a file format for storing images, including photographs and line art. It is now under the control of Adobe.
XAR (Xar, .xar)
The Xar file format, previously known as the Flare file format, is an ultra-compact, open, vector graphic format. It is also the native graphics format for Xara X application (and also its predecessors such as CorelXARA).
The Xar file format is not new.
XBM (X BitMap, .xbm)
The X Window System uses X BitMap (XBM), an ASCII text monochrome image format, for storing cursor and icon bitmaps used in the X GUI. XBM files differ markedly from most image files in that they take the form of C language source files.
XPM (X-Pixmap, .xpm)
X Pixmap (XPM) is an ASCII-text-based image format used by the X Window System. It was created in 1989 by Daniel Dardailler and Colas Nahaboo working at the INRIA, France, and was later enhanced by Arnaud Le Hors. It is intended primarily for creating icon pixmaps, and supports transparent color.