[cups.general] OT: PDF versions (was: Problem printing pdf document)

[Gene Heskett]

On Thursday 07 September 2006 22:21, Ambrose Li wrote:
>On 07/09/06, Johannes Meixner <jsmeix at suse.de> wrote:
>> Seriously:
>> Ask the software vendor of the pdf generator which PDF level
>> the generator generates and if the PDF level can be choosen.
>> If it can be choosen, perfer a lover PDF level.
>> If a too high full-featured-topmost-high-level-make-user-happy
>> PDF level is used, existing software may not yet be able to
>> process its topmost-high-level-make-user-happy-features.
>
>Seriously, this will not solve anything.
>
>I did some testing on PDF versions when someone complained about not
>being able to view the PDF's I made; that was maybe a year or two ago.
>And the results are not pretty: No version of PDF can be guaranteed to
>be correctly viewed in all versions of Acrobat PDF Reader.
>
>Adobe's own generators seem to do better, for whatever reason. I don't
>know why this is the case, but I don't think this is good news either.
>
>And btw, whether the file can be correctly interpreted by Ghostscript
>has nothing to do say about whether the file can be read elsewhere.
>There are PDF files that can be read by Ghostscript but not Acrobat
>Reader, and vice versa. My latest accidental discovery is that if we
>use Ghostscript to generate PDF, the result may be viewable on both
>Ghostscript and Acrobat Reader, but not Apple's Preview. PDF being
>"portable" is just a joke.

Portable is relative.  There are some miss-matches, but its the most 
portable of document formats by quite a long ways.

-- 
Cheers, Gene
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