Difference between revisions of "ascii85"
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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). | 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. | Its main modern use is in Adobeʼs PostScript and Portable Document Format file formats. | ||
− | == | + | ==See Also== |
+ | * https://www.freepascal.org/docs-html/fcl/ascii85/index.html | ||
* https://en.wikipedia.org/wiki/Ascii85 | * https://en.wikipedia.org/wiki/Ascii85 | ||
+ | |||
+ | [[Categories FCL]] | ||
+ | [[Category:Packages]] |
Revision as of 18:03, 16 August 2022
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.