The PalmDoc format is commonly called the DOC format. However, that is only a shorthand name.
In 1996, Rick Bram developed a method to compress text files for the Palm OS. Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) Palm OS (also known as Garnet OS) is an embedded Operating system initially developed by U He called the format "Palm Doc".
In 1997, Aportis Technologies Corporation bought the rights to PalmDoc, and renamed it AportisDoc. Year 1997 ( MCMXCVII) was a Common year starting on Wednesday (link will display full 1997 Gregorian calendar
As of December 31, 2002, Aportis has ceased operations. Events 406 – Vandals, Alans and Suebians cross the Rhine, beginning an invasion of Gallia. See also 2002 (disambiguation Year 2002 ( MMII) was a Common year starting on Tuesday of the Gregorian calendar. The AportisDoc software is no longer supported, but the format has an open specification, and a great deal of other Palm software exists which uses that format and will continue to use that format.
The other primary product of Aportis Technologies Corporation was BrainForest, which is now actively developed by Ultrasoft Limited.
DOC files can contain only compressed text. The format does not allow for any formatting. This keeps files small, in keeping with the Palm philosophy. However, extensions to the format can use tags, such as HTML, to include formatting within text. HTML, an initialism of HyperText Markup Language, is the predominant Markup language for Web pages It provides a means to describe the structure These extensions to PalmDoc are not interchangeable.