Technical Foundations
Anyone may create applications that can read and write PDF files without having to pay royalties to Adobe Systems; Adobe holds patents to PDF, but licenses them for royalty-free use in developing software complying with its PDF specification.
The PDF combines three technologies:
- A subset of the PostScript page description programming language, for generating the layout and graphics.
- A font-embedding/replacement system to allow fonts to travel with the documents.
- A structured storage system to bundle these elements and any associated content into a single file, with data compression where appropriate.
Read more about this topic: Portable Document Format
Famous quotes containing the words technical and/or foundations:
“A technical objection is the first refuge of a scoundrel.”
—Heywood Broun (1888–1939)
“and the oxen near
The worn foundations of their resting-place,
The holy manger where their bed is corn
And holly torn for Christmas. If they die,
As Jesus, in the harness, who will mourn?
Lamb of the shepherds, Child, how still you lie.”
—Robert Lowell (1917–1977)
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