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From: "ldk" <ldk@hyphen.com.au>
To: <jeffmcarthur@home.com>, <tiff@olympiakos.com>
References: <tlok4u4v55rpqogbctgpb7s26ocu7482ii@4ax.com>
Subject: Re: TIFF files from Photoshop 6
Date: Mon, 21 Jan 2002 15:37:30 +1000
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Hi,
mybe you modify one line of code in libtiff/tif_warning.c:
{
...
 _TIFFwarningHandler = handler;
...
}
to
{
...
 _TIFFwarningHandler = 0;
...
}
and recompile.

----- Original Message -----
From: "Jeffrey McArthur" <jeffmcarthur@home.com>
To: <tiff@olympiakos.com>
Sent: Sunday, January 20, 2002 4:25 PM
Subject: TIFF files from Photoshop 6


> If you run PDFTeX, which uses the libtiff library, and try and include a
> TIFF file generated by Photoshop 6 you get a pop-up dialog:
>
> "Unknown field with tag 37724 (0x935c) ignored"
>
> I did a little research, and found the following information:
>
> >Photoshop 6.0 uses 4 more tags that are not defined in the TIFF v6
> >specification. They are: tSubIFD (330), tJPEGTables (347),
tImageSourceData
> >(37724), and tAnnotations (50255). tSubIFD is documented in the TIFFPM6.
> >pdf file as a PageMaker extension. tAnnotations are discussed earlier in
> >this chapter, the TIFF tag does not include the first 12 bytes of the
> >Annotation. The details for the remaining tags are in the tables at the
end
> >of this section.
> >tImageSourceData is a null-terminated string identifying the type of data
in
> >the tag followed by the data for the tag. See the tagged resources found
> >earlier in this document.
>
> That description is found on page 42 of Adobe Photoshop 6.0 File Format
> Specification which was found at:
>
> http://partners.adobe.com/asn/developer/gapsdk/download/ps6ffspecsv2.pdf
>
> The tag is not part of the TIFF v6 spec, but it is documented by Adobe.
How
> do I go about getting someone to change the TIFF libraries so that this no
> longer generates a warning dialog?
>
>     Jeffrey M\kern-.05em\raise.5ex\hbox{\b c}\kern-.05emArthur
>     a.k.a. Jeffrey McArthur          ATLIS Publishing Services
>     http://members.home.net/jeffmcarthur/
>
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