1 Reply Latest reply on Apr 17, 2008 3:44 AM by (Aandi_Inston)

    PDF Signing Info

      Functionality what we required:

      We have a PDF on ASP.NET web page with some content related to business contract. User has to accept the contract by signing (clicking the buttons) on that PDF. It may be possible user have to put more than one signature on that PDF. The numbers of signatures required on PDF are coming from the database. After signing on PDF (putting the signatures at all required places) we have to update the status in database that PDF has been signed. We need not require saving the PDF

      Implementation approach, which we are following:

      1. We have put two hidden label controls and the buttons for signature at required places through JavaScript in PDF. One label control has a value for total number of signatures required in PDF and another label for maintaining the counter of the number of buttons clicked for signing the PDF document. On clicking the button it becomes disabled and increase counter in second label control. We match the value of label controls, if value are same, all the signatures has been placed otherwise we display a JavaScript error message that informs that all signature need to put for complete signed PDF document.
      2. We have created a web page having an Iframe and a submit button. In Iframe we are displaying the PDF document.

      Till here every thing is working fine.

      Required:

      The submit button has to send the notification to web server that the PDF document has been signed.

      Problem, that arises:

      How we will check that all the signatures have been put or not inside PDF on clicking the submit button on the web page?

      Does anyone have better opinions for the implementation of this functionality, please suggest.
        • 1. Re: PDF Signing Info
          (Aandi_Inston) Level 1
          >How we will check that all the signatures have been put or not inside PDF on clicking the submit button on the web page?

          You'd need a PDF library that can do this detailed, and rather
          complicated, analysis. I think the Adobe PDF Library would do this,
          but it would be awkward. You can't use Acrobat on a server, so its API
          can't help.

          Aandi Inston