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Topic: Re: Getting Name info from Signatures
Conf: (P-PDF) Developers, Msg: 57179
From: Deleted User
Date: 5/29/2002 05:24 PM
>I am attempting to gather a single piece of information from a
>signature field in Acrobat. We have created a server-side
>application that uses online PDF forms to act as a full interface to
>a server-side database. One feature that is missing is the ability
>to store the name of the person who digitally signed the form. The
>name is in the signatures information in the left-hand frame, but I
>have not been able to find a way to access this piece of data.
>field's "userName" property upon signing, which gave me absolutely
>nothing. We've tried getting the FDF data and parsing it for the
>name, but all that is transmitted as the field's value is <>.
>Is this even possible? It would seem so, since there would be no
>real security breach in programatically detecting the user name of
>the signature profile since it is prominently displayed information
>anyway. Being able to extract other information as well would be
>nice, but getting the name info for transmission to the database is
The user name is freely available in the signature dictionary if the
document was signed using Adobe's PPKLite.
Are you using PPKLite to sign the documents? What are you using on
the server to parse the PDF file? Are you trying to find the user
name in a submitted FDF file as opposed to the PDF file?
Chief Technology Officer
Appligent, Inc. (formerly Digital Applications, Inc.)
60 South Lansdowne Avenue
Lansdowne, PA 19050