Difference between revisions of "ascii85"

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==Ascii85 (also known as Base85)==
 
 
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.
  
== Further Reading==
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==See Also==
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* https://www.freepascal.org/docs-html/fcl/ascii85/index.html
 
* https://en.wikipedia.org/wiki/Ascii85
 
* https://en.wikipedia.org/wiki/Ascii85
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[[Categories FCL]]
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[[Category:Packages]]

Revision as of 17:03, 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.

See Also

Categories FCL