| OK, granted, there *would* be reasons aside from meanness or stupidity where an application might alter the mage data even though your intent was otherwise. I still say it's going to be a rare corner case - "most" programs won't do this unless you use them "incorrectly" (eg, opening an image for editing and then doing a save, as opposed to not even entering the main editor but making the changes directly to the metadata screens). But yes, by all means, do verify you are in fact doing it correctly, and that your program does in fact provide a way to do this. Again, "most" programs will provid a straightforward wa to accomplish this.
BTW, I've got *some* amount of knowledge on a variety of topcs, including photography, but my most extensive training and experience (including BS & MS degrees) is in software engineering. FWIW. So while I have no knowledge of the specific internals of any particular image processing application, I do have a pretty good feel for how things are programmed. |