ascii85
Ascii85, also called Base85, is a form of binary-to-text encoding developed by Paul E. Rutter for the “btoa” utility. By using five ASCII characters to represent four bytes of binary data (making the encoded size ¹⁄₄ larger than the original, assuming eight bits per ASCII character), it is more efficient than uuencode or Base64, which use four characters to represent three bytes of data (¹⁄₃ increase, assuming eight bits per ASCII character).
Its main modern use is in Adobeʼs PostScript and Portable Document Format file formats.
See Also
From the Free Pascal wiki, page "ascii85", as it stood on 2022-08-16 after a change by Skalogryz, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.
Edited on wiki.freepascal.org by 2 people, 2016–2022
From the official wiki's backup of 26 May 2024: who edited this page there, and when. Edits made there after that date were not recorded, and the earlier versions are not shown here; the main page says why.
| When | Who | What changed |
|---|---|---|
| Ggeldenhuys | Initial page | |
| Ggeldenhuys | Further Reading (minor) | |
| Skalogryz | (minor) | |
| Skalogryz | See Also (minor) |
Talk about this page
Nobody has opened a bench for this page yet. Sign in to open one.