From: tjk@ams.org (Tom Kacvinsky)
Date: Thu, 4 Sep 2003 20:15:02 -0400 (EDT)
Subject: [Tiff] Problems with Postscript output from tiff2ps
In-Reply-To: <4CF632BA-DF34-11D7-B0BE-000A95854D70@arslegal.com>
References: <4CF632BA-DF34-11D7-B0BE-000A95854D70@arslegal.com>
Message-ID: <Pine.GSO.4.53.0309042014210.418@sun06.ams.org>

We would need to see the TIFF file, too.

Tom

On Thu, 4 Sep 2003, Morten Bagai wrote:

> Hey there,
>
> I am using libtiff with Ghostscript on redhat 7.3 in a solution that
> automates conversion of large, group4 compressed, multi-page tiff files
> to pdf files. The way I am doing this is basically by piping outfrom
> tiff2ps into the ps2pdf utility that comes with Ghostscript. Recently,
> I have run into a problem the postscript output created by tiff2ps.
> Since our tiff files are generated by some arcane batch scanning
> program, my solution will occasionally encounter a tiff file that has a
> corrupt page or two in it. Opening the source tiff file in any tiff
> viewer works fine, and you can see that all or part of the page in
> question is 'blacked out' or munged. When tiff2ps handles a file like
> this, it will generate the postscript output without any errors but
> there is something wrong with the result as ghostscripts pdf
> interpreter chokes on it and exits with an i/o error. The resulting pdf
> file has all the pages leading up to the bad page. I tried opening the
> postscript generated by tiff2ps in Adobe Acrobat 6 Pro, and I get
> exactly the same error as with Ghostscript. This led me to try and open
> the tiff file with Acrobat and saving it as a postscript file. If use
> Acrobat's postscript output with Ghostscript the pdf generation works
> just fine, leading me to conclude that there is something wrong with
> tiff2ps' postscript output.
>
> Here's an example of what I do on the command line:
>
> tiff2ps -a2 /pathto/sourcefile.tif  | ps2pdf -r240
> -dProcessColorModel=/DeviceGray -dPDFSETTINGS=/printer -
> /pathto/destinationfile.pdf
>
> My setup is the following:
>
> libtiff version 3.5.7-2
> redhat 7.3 i386
> ghostscript 6.52 (but it appears this is not the issue even though i do
> plan on upgrading)
>
> I'd be very grateful for any suggestions as to what might be going
> wrong, options to tinker with, known bugs etc. Also, I'd be interested
> in knowing if the beta version of libtiff 3.6 is supposed to fix
> anything that might impact this issue. I can provide the postscript
> files generated by libtiff and acrobat for the same file if that helps.
>
> Thanks!
>
> Morten
>
> _______________________________________________
> Tiff mailing list
> Tiff@remotesensing.org
> http://remotesensing.org/mailman/listinfo/tiff
>

