How to change LZW compression format?

D

Darren

Environment:
Windows XP Pro
Office 2003 and Office 2000

If we rotate a TIFF image file using Windows Picture and Fax Viewer it
changes the compression format to LZW. We then upload our faxes (tiff files)
to a 3rd party who rejects any images that use LZW compression. We then have
to reformat these to a supported compression type. I have tried to find a
way to change the default behaivior to not use LZW, but I can't find out.

If I open Microsoft Office Document Imaging, and select Tools -> Options,
then the Compression tab, there is a check box for LZW compression that is
checked, but it is greyed out and I cannot uncheck it. Is there anyway to
use any other compression format besides LZW?

Thank you,
 
B

Bob I

The answer would seem to be "Don't use Windows Picture and Fax Viewer to
rotate images".
 
J

Jay Freedman

Try using the free IrfanView editor (www.irfanview.com). It can open TIFF
files and rotate them (90, 180, or 270 degrees or arbitrary rotation), and
it offers the following compression methods in the Save As dialog when
saving as TIFF:

None
LZW
Packbits
JPEG
ZIP

and for black-and-white images only:

Huffman RLE
CCITT Fax 3
CCITT Fax 4

--
Regards,
Jay Freedman
Microsoft Word MVP
Email cannot be acknowledged; please post all follow-ups to the newsgroup so
all may benefit.
 

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