I was just scouring our sales inquires at the end of the day (something I like to do, see what questions and issues pre-sales are being asked) and noticed a question that is pretty straightforward for us PDF nerds, but I’m sure a others would think about it when considering a non-Adobe PDF solution.
Will Nitro compile an existing PDF file? If we have a previously existing pdf file of an eBook with pics and text, that is free of any extra security settings in Adobe, will Nitro accept that pdf file and work with it to set the security settings?The answer is absolutely. PDF is now an ISO standard, and even before this happened (in 2007) the PDF specification was published by Adobe each time a version of Acrobat was released. So 3rd party developers are able to learn about the internals of a PDF and ensure they conform to that specification.
So yes, you can set security in Nitro Pro on a PDF that was created with Acrobat (or any other PDF creator for that matter). You can even remove security in Nitro Pro on a PDF that was secured with Acrobat (as long as you know the password!).