I don't know whether it's addressed in its current products, but you unfortunately have to uninstall a product in order to deactivate it. One major drawback of any Nuance product is the activation process which I find quite antiquated (only Serif's rivaled it in terms of annoyance). While some of the other PDF editors have great and useful features, I've found that the pricing is often higher than I would pay and some of the scaled pricing for additional features already standard in Nuance is not worth purchasing any of them. The only reason I can think of to upgrade in the future is if a major operating system change caused Nuance not to work. I would have stuck with Nuance version 8 but I upgraded to the Advanced version to get the redaction features. I don't know of any of the other editors with that feature.

While Acrobat had previously form field features, Scansoft/Nuance introduced the auto form typer first and it was later added to Acrobat. If it misses a field, it is easy to manually convert it. It is pretty good at recognizing form fields and converting them to allow for filling in. I started using it when it was still Scansoft and the main feature I would not wish to give up in a PDF editor is the auto form typer. Nuance PDF Advanced is the best alternative to Adobe Acrobat Pro for me personally. I haven't used Nitro since the 5th or 6th version (although I did have use their PDF Reader before it was discontinued).

Anything beyond generally requires a business/enterprise version. Justine Jordan Most personal/pro version PDF software allows for one desktop or two desktop/laptop installations.

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