Re: [artworks] PDF with JPEG
- From: Martin Wuerthner <lists@xxxxxxxxxxxxxxx>
- To: artworks@xxxxxxxxxxxxx
- Date: Fri, 16 Jan 2009 10:07:33 +0100
In message <69fd4e1e50.boase@xxxxxxxxxxxxxxxxx>
Bernard Boase <b.boase@xxxxxxx> wrote:
> Sure enough, dropping the JFIF part into:
> - Draw 1.14 (RISC OS 5.13) gives a similar corrupt graphic rectangle,
> and
> - Draw 2.40 (RISC OS 6.14) gives a grey rectangle with the message
> "Incomplete or corrupt JPEG data", but
> - DPlngScan 1.24, PDF and RiScript all render it correctly.
> So is there a version of RISC OS that is as tolerant as these latter
> applications?
Apparently not. RISC OS 6.14 has the most advanced JPEG rendering, so
if that does not render it, no other version will.
DPlngScan, PDF and RiScript do not use the RISC OS JPEG rendering
facilities and use ported standard JPEG rendering code instead. The
same goes for JPEGs in PDF files imported into ArtWorks if you switch
off the option "Keep JPEG compressed images as JPEGs".
Martin
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