Hi,
I recently created a form with Acrobat Pro 9. it includes a digital signature feild. I have distributed the form to all my users and asked them to sign it using thier smart card certificates. now ive done this before in acrobat 8 and everything worked fine. but now im getting reports from about 30% of the users that they are unable to sign the form. they get an error like this: "The credential selected for signing is invalid."
If they move to another computer and try again, they are able to sign it. if someone else logs into thier machine, they cannot sign it. its like the problem exists on the machine and not the user profile.
the users are using Vista machines with Adobe Reader 9 (latest pathces). Im thinking maybe there is some cached data for adobe reader on the local machine (like app data or something) that i can clear out before they sign. but im not familiar with the ins and outs of digitally signing with adobe acrobat.
if someone has any suggestions or could point me to a good tech writing on the ins and outs of digital signatures with adobe acrobat/reader, that would help to.
i did do a search, but couldnt find anything specific to my problem.
Thanks.
Jay