When you attempt to recolor a bitmap graphic by clicking Recolor on the
Picture tab of the Format Picture dialog box, you receive the following
message:
This object is a bitmap. To recolor it you must use an image editing
program such as Microsoft Photo Editor.
This functionality is different from earlier versions of PowerPoint where
you can replace individual colors in bitmap images that contain up to 64
different colors.
PowerPoint does not have a feature to replace the individual colors in a
bitmap. You can replace the individual colors in an imported vector-based
graphic if the graphic contains less than 64 colors.
PowerPoint has new features to manipulate the colors in bitmaps. For
example, you can adjust the brightness and contrast of bitmaps, change them
to black and white or gray-scale, lighten all the colors or even make one
of the colors transparent.
This feature is under review and will be considered for inclusion in a
future release.
The following formats are bitmap graphics:
Windows Bitmap (.bmp)
CompuServe Graphics Interchange Format (.gif)
Joint Photographic Experts Group (.jpg)
Kodak Photo CD (.pcd)
PC Paintbrush (.pcx)
Portable Network Graphics (.png)
Tagged Image File Format (.tif)
TARGA (.tga)
The following formats are vector-based graphics:
AutoCAD Drawing Exchange Format (.dxf)
Computer Graphics Metafile (.cgm)
CorelDRAW! (.cdr)
Hewlett-Packard Graphics Language (.hgl)
Micrographx Designer/Draw (.drw)
The following graphics formats can be bitmap, vector, or a combination of
both:
Encapsulated PostScript (.eps)
Macintosh PICT (.pct)
Windows Metafile (.wmf)
Windows Enhanced Metafile (.emf)
With the exception of .eps files, PowerPoint can replace individual colors
in these formats if they contain only vector-based information. PowerPoint
can not manipulate .eps files.
For additional information, please see the following article in the
Microsoft
Knowledge Base:
189820Â
(http://kbalertz.com/Feedback.aspx?kbNumber=189820/EN-US/
)
PPT97: Types of Files PowerPoint 97 Can Open