Re: [Sheflug] Read mackintosh jpg file under linux

[John Southern <john [at] xxxxxxxxxxxxxxxxxx>]

On Sunday 11 December 2005 00:38, David Johnson wrote:
> On Saturday 10 Dec 2005 23:55, Peter Collier wrote:
> > Hi all, I've received 4 jpg files from an american firm who were doing a
> > "shoot" at my firm. These files came from a mac computer and I can't
> > view them. I've looked at macutils package, googled around for a couple
> > of days but can't make sense as to what to do.
>
> A JPEG file is a JPEG file, irrespective of the system on which it was
> created.

Unfortunately, this is not true, although we all wish it was.
Apple Macs default to use the older Quicktime implementation of JPEG are 
actually PICT/JPEG, whereas we tend to use the Usenet-standard JFIF JPEG 
format.

You can convert Apple Mac PICT/JPEG files with jpeg2ps or picttpppm

In some cases it is a JFIF file but with the usual MacBinary header (Just take 
off the first 128 bytes to remove this).

PICT is lossless but also has very poor compression.

John
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