2011

Supported Image Formats
AutoCAD Map 3D supports the most common image file formats used in
computer graphics, document management, mapping, and geographic
information systems (GIS). Images can be bitonal, 8-bit gray (grayscale), 8-bit
color (indexed color), or 24-bit color (true color).
Several image file formats support images with transparent pixels. When image
transparency is on, AutoCAD Map 3D recognizes those transparent pixels and
allows graphics on the AutoCAD Map 3D screen to show through those pixels.
(In bitonal images, background pixels can be treated as transparent.)
Transparent images can be grayscale or color.
In addition, you can select the transparent color for grayscale or color images,
and you can set the opacity for raster images.
AutoCAD Map 3D supports the following raster file formats. Some formats,
such as SID and ECW, are supported as OLE objects and not as image files.
AutoCAD Map 3D determines the file format from the file contents, not from
the file extension.
File extensionDescription and versionType
.bmp, .rle, .dibWindows and OS/2 bitmap formatBMP
.rst, .gp4, .mil, .cal, .cg4Computer Aided Acquisition and Logist-
ics Support
CALS-I
.doqDigital orthophoto quadrangle raster
image format (used for aerial photos
that are processed to remove distortion)
DOQ
.ecwEnhanced Compressed Wavelet (a
highly compressed multiresolution im-
age format from ER Mapper
ECW
.flc, .fliAutodesk digital animation formatFLIC
.bilSPOT Image Corporation format with
georeferencing information
GeoSPOT
.tifTIFF with georeferencing informationGeoTIFF
Graphics Interchange Format (a raster
image format from CompuServe)
GIF
Using Other Raster Image Formats | 457