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From: wwilliam@dvorak.amd.com (Wade Williams)
Newsgroups: comp.sys.mac.misc
Subject: Re: Mac GIF --> IBM GIF?
Message-ID: <1991Jun13.153606.13977@dvorak.amd.com>
Date: 13 Jun 91 15:36:06 GMT
References: <1991Jun6.051440.9591@agate.berkeley.edu>
Organization: Advanced Micro Devices, Inc.; Austin, Texas
Lines: 38

In article <1991Jun6.051440.9591@agate.berkeley.edu> garya@plague.Berkeley.EDU (Gary Arnold) writes:
>
>Could anyone out there give me any information on how to transfer Mac GIF
>files to an IBM over the modem?  GIF is a "standard" graphics format, so
>it should work on the Mac and the IBM.  Do I need to convert the Mac file to
>pure data (no resource)?  If so, how?  How about transferring from IBM to
>Mac?  Thanks a bunch!
>
>Gary Arnold
>garya@plague.berkeley.edu

Hi, I would like to add my .02 to this question.. I have a question which
specifically involves the way Macintosh systems handle files.  I can
successfully down load, link, and uudecode files on a Sun.  I then transfer
the files to my Mac via ftp.  Once the files are on the Mac, I always must
edit the file type to GIFf and often the creator to BOZO before Giffer or
QuickGIF will recognize the file as a GIF picture.  Once I do this, I can
just click on the particular picture and GIFFER will automatically launch
itself and load the picture.


So you ask, what is the problem?  Well, it seems that somehow the actual
gif files are being modified so if anyone would like to copy them for use
on a Sun or other UNIX or GIF viewing system, the files will not work.
Does anyone know how the Mac modifies GIF files, and how to change them
back once they are on a Mac?  I have looked at the files with DiskTop and
there appear to be only data forks, and no resource forks have been created.
That was my first guess since Mac files often are created with two separate
forks and create binary transfer problems on other systems.




Any help is appreciated!!!!!


Thanks,
Wade                   wwilliam@dvorak.amd.com