I have downloaded and registered the a-pdf watermark software that watermarks pdf files. I have recently moved server and I have registered the software. When i run it via the GUI it correctly creates the watermarks.

However when I do it via my PHP application I get an extra watermark saying I haven't registered the software, but I have.

How can I get rid of this watermark?


It turns out that the software only registers itself for the current user. My php application runs as nt authority\system which doesnt have the reg code entered in its section of the registry.

To Fix

Copy the RegisterCode value from


key to


and then it works fine without the unregistered watermark.

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