PDF readers should be backward compatible.
AFAIK there's no reason to write a newer version number unless a newer
version adds a feature you need.
 

-----Original Message-----
From: mehdi houshmand [mailto:[email protected]] 
Sent: Monday, March 14, 2011 10:10 AM
To: [email protected]
Subject: Re: PDF version specification

Hi Markus,

Unfortunately looking at the code, the PDF version (1.4) is hard-coded.
This is presumably because FOP doesn't support any of the features of
subsequent versions, though I'm sure someone in the community will be
able to tell you the exact reasons for this.

You may be able to change this to 1.6, but either someone else in the
community will be able to help you out there, or I'd suggest looking at
the PDF spec, if PDF is backward compatible you can change the version
with impunity. The PDF version is set in o.a.f.pdf.PDFDocument line 103.
You'll probably have to do something to PDFProfile and add an extra case
in PDFDocument.getPDFVersionString(). But that shouldn't be too
difficult, that is of-course if there aren't any calamitous affects to
do with the PDF spec, which I sadly lack knowledge in.

Hope that helps,

Mehdi

On 14 March 2011 13:46, Markus Ruggiero <[email protected]>
wrote:
> When I generate a simple PDF from within my Java app the resulting PDF
file says PDF Version 1.4. My customer talks about going to PDF version
1.6 or higher. Is this something I have to explicitly set? Where would I
do this? My tests are based on FOP 1.0 and the simple embedding examples
from the xmlgraphics website.
>
> Thanks for any enlightening
> ---markus---
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