2011

Table Of Contents
document management, engineering, mapping, and geographic information
systems (GIS). Images can be bitonal, 8-bit gray, 8-bit color, or 24-bit color.
Images with 16-bit color depth are not supported starting with AutoCAD 2011.
Several image file formats support images with transparent pixels. When image
transparency is set to on, the program recognizes those transparent pixels and
allows graphics in the drawing area to show through those pixels. (In bitonal
images, background pixels are treated as transparent.) Transparent images can
be gray-scale or color.
NOTE Although the file name extension is listed in the following table, the file
format is determined from the file contents, not from the file extension.
Use the Ribbon Contextual Tab to Work with Raster Images
If you select an image when the ribbon is active, the Image Ribbon Contextual
tab displays. The contextual tab contains options for adjusting, clipping and
displaying images. The ribbon contextual tab is dismissed automatically after
the image is deselected.
Supported image file formats
File extensionDescription and versionsType
.bmp, .dib, .rleWindows and OS/2 bitmap formatBMP
.gp4, .mil, .rst, .cg4, .calMil-R-Raster ICALS-I
.flc, .fliFLIC Autodesk Animator AnimationFLIC
.bilGeoSPOT (BIL files must be accompan-
ied with HDR and PAL files with correla-
tion data, in the same directory)
GeoSPOT
.ig4Image Systems Group 4IG4
.jpg or .jpegJoint Photographics Expert GroupJFIF or JPEG
.pcxPicture PC Paintbrush PicturePCX
.pctPicture Macintosh PicturePICT
.pngPortable Network GraphicPNG
.rlcRun-Length CompressedRLC
1782 | Chapter 37 Work with Data in Other Formats