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Article #8007

Re: GIFConverter 2.2d5

#8007
From: Steve Baumgarten
Date: Mon, 25 Mar 1991 18:34
28 lines
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In article <1991Mar25.131906.27498@watserv1.waterloo.edu> anderson@fpg.waterloo.edu (Glen Anderson) writes:

   I think my problem with GIFConverter created gif files is that it
   stores them incorrectly. I can not read the files back using other
   gif programs such as Giffer 1.08 and QuickGIF 1.0.

   It there a patch?

The problem is that the latest versions of GIFConverter (from 2.2d4
on, I believe) are now correctly tagging GIF files as being "GIF89a",
rather than the older "GIF87a".  It does this because GIFConverter
makes use of some of the newer GIF89a features (multiple images in one
file, etc.).  Older versions were incorrectly tagging these files as
"GIF87a" files.

Unfortunately, there's no option that says, "I'm just saving a plain
old GIF87a file with no special features, so please tag it as such."
You can achieve the same results by opening and resaving the file with
an older version of GIFConverter (2.1.1 works fine).  You can also
open the file with something like SUM Tools and change the "GIF89a" to
"GIF87a" at the beginning of the file.  That's what I do when I upload
files to my Unix box at work (except I use Emacs instead).

--
   Steve Baumgarten             | "New York... when civilization falls apart,
   Davis Polk & Wardwell        |  remember, we were way ahead of you."
   baumgart@esquire.dpw.com     | 
   cmcl2!esquire!baumgart       |                           - David Letterman
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From: baumgart@esquire.dpw.com (Steve Baumgarten)
Newsgroups: comp.sys.mac.apps
Subject: Re: GIFConverter 2.2d5
Message-ID: <BAUMGART.91Mar25133439@info7.esquire.dpw.com>
Date: 25 Mar 91 18:34:39 GMT
References: <1991Mar25.131906.27498@watserv1.waterloo.edu>
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Organization: Davis Polk & Wardwell
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In-reply-to: anderson@fpg.waterloo.edu's message of 25 Mar 91 13:19:06 GMT