Can I open reader and digitally sign pdf in flash?

First off let me say, I have 0 experience with Adobe Flash or Adobe Air, so this may be a dumb question or I may not even be asking in the right place. I currently have an application which uses Adobe Reader to digitally sign PDF files. The PDFs are displayed inline within a webpage. The user must use Adobe Reader because it needs to be FIPS 140 certified. The issue we are running into is with browsers like Chrome and Firefox bunding their own PDF reader, it brakes our application. I am looking for a way to force users to use Adobe Reader. From reading on the web, it looks like this isn't really possible and we are at the mercy of the PDF plugin the user has installed. The idea I thought of, though, would be to write an Adobe Flash application which would display the PDF. I am hoping doing it this way, I could force the use of Adobe Reader and not the PDF plugin of the browser. Does anyone know if this will work? And if it does, will I have all functions of Adobe Reader available (specifically digitally signing)?

for a web based app, you can't easily display a pdf in flash. even for an air app (or any other platform), you can't force anyone to use adobe reader (especially, because not everyone has adobe reader).

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Can I open reader and digitally sign pdf in flash?

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