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Date Posted: 09:15:36 02/13/02 Wed
Author: glup
Subject: TIFF SaveToStream

I have just tried to load a TIFF and then save it again. It seams that this changes the file.

Especially I found out that TIFF Tag Data is changed that does not contain the pure image data or data for interpretion of that, but for importance for automatic processing:

TIFFTAG_DOCUMENTNAME
TIFFTAG_IMAGEDESCRIPTION (contains in some Fax Systems the Sender Id)
TIFFTAG_GROUP3OPTIONS
TIFFTAG_FAXMODE
TIFFTAG_MAKE
TIFFTAG_MODEL
TIFFTAG_SOFTWARE
TIFFTAG_DATETIME
TIFFTAG_FAXRECVPARAMS
TIFFTAG_FAXSUBADDRESS
TIFFTAG_FAXRECVTIME

Why are they changed?
Could I manipulate these Tags? If yes how?

Rgds

glup

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