On Fri, Aug 01, 2003 at 02:58:54AM +0200, Henk Abma wrote:
> In the cups documentation it is stated that cups supports jpegs 'out of
> the box', so I thought the procedure described was the logical thing to
> do.
Well, obviously it does support jpegs out of the box, it just isn't
doing quite what you were expecting it to do.
I'm no expert on the internals of CUPS, but I'm guessing that, unless
you specify otherwise somehow, it assumes that the JPEG file is at 72 DPI,
much like pnmtops does; it just also automatically does a 'split large
files over multiple pages' somewhere in the 'imagetoraster/imagetops'
programs that it uses for data conversions. JPEG files do have flag in
the header that tell what resolution the image is supposed to be at, but
I'm not sure how it can be set in command line programs; none of the JPEG
generators I've seen have an option for that.
There's probably some option you can pass to lpr to disable the multiple
page spreading, somewhere. As I said, I'm no expert on CUPS.
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