Well.. if the file size is small, and I don't have to save repeteadly, then you will be right: save as is similar to save.

But when the file size is large and I have to change repteadly (and therefore save repeteadly) save as becomes a hassle.

Thank you for attempting to answer my question, but what I'm looking for is a solution, not why I should continue to live under the "save as" problem.

Again... my problem is that when I want to Save, the Save As menu pops up.

The error message:

The file may be read-only, or another user may have it open. Please save the document with a different name or in a different folder.

The problem is that the file is NOT read-only, and NO user (other than me) have it open.

Hope that clarifies my question.

What I want to do is to save, not save as.

good question...I was able to do a "save as" back to the same folder...

and the folder in not on a server, or anywhere I don't have full access, so I am stil wondering why it behaved like a read-only file...

do you know if the folder is synced to other computers (like dropbox), would that make it behave like a read-only file?

but the thing is that it works fine with other computers so I was thinking whether the problem stems from some setting in the PDF?

also.. another weird glitch I noticed is that if I make one or two changes, I can save but if I make more than those minor changes, the error message pops up.

I checked... but there are no restrictions whatsoever.

Thanks anyhow.

Unfortunately it is not a read-only.

Thanks for all your output... but I am just going to re-install the computer, and re-install the software to see what happens.

Thanks again!