generating Tiff/PNM page break tag when concatenating fax pages

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Hi,

On Thu, Apr 22, 1999 at 10:44:18AM +0200, Frank D. Cringle wrote:
> Switching resolution from page to page seems a rather unlikely
> scenario, 

Well, I haven't seen fax machines that can do it yet, but there is a
provision for it in the T.4/T.30 standard - after sending one page, you
can send another page with the same resolution etc. immediately following,
or you can re-negotiate all session parameters.  So it is possible.

(Sendfax can't do it).

> but the way to get the pages into a single tiff file would
> be to use tifcp's -a (append) flag.
> 
>   fax2tiff -4M -R98 -o fax.tif fn123456789
>   fax2tiff -4M  -o tmp.tif ff987654321
>   tiffcp -a -r9999 tmp.tif fax.tif
>   rm tmp.tif
> 
> Instead of setting the resolution (-R98) for low res faxes you could
> use the -s flag to stretch them.

Interesting features.  Thanks for pointing this out.

(I will have to take a closer look at the tiff library stuff... :) )

gert
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Gert Doering - Munich, Germany                             gert@greenie.muc.de
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