RIFF Device-Independent Bitmap File Format

There are two types of RIFF device-independent bitmap (RDIB) formats:

• A simple RDIB consisting of a DIB file enclosed in a RIFF chunk.
  
• An extended RDIB that allows the creation of more complex bitmaps.

To ensure that the maximum number of programs will accept an RDIB file, programs that adopt the extended RDIB format also must accept simple RDIB files. Both formats are described in the following sections.