[Linux-users] Rotation of PDF files

[Michael Hipp]

Lonni J Friedman wrote:
> On 8/15/07, Michael Hipp <Michael at hipp.com> wrote:
>> Ben Duncan wrote:
>>> PDF is suppose to be a direct descendant of Postscript (could be wrong here).
>> I think this is essentially true, but relevant only to the extent that Bill
>> Clinton being a direct descendant of Mrs. Noah helps explain anything.
> 
> I've never read anything to suggest  that Adobe created PDF as a
> derivitive of PS.  The two have nothing in common in terms of code
> lineage as far as I'm aware.

http://www.adobe.com/print/features/psvspdf/

A smarter format
"It just so happens that PDF is built largely on the PostScript language, but 
it has been taken one step further. "

"A PDF file is actually a PostScript file which has already been interpreted 
by a RIP and made into clearly defined objects. "

Michael