There are many ways to create a self-signed digital signature certificate (also called a digital ID), but Adobe Reader 9.0 provides the easiest way to generate and automatically store it in the Windows Certificate Store so it can be used with the Print2PDF signing function. Read below to see how this work.
Generate a Self-signed Certificate
Do the following to generate a self-signed key with Adobe Reader:
- Launch Adobe Reader.
- Click Document - Security Settings.
- Expand Digital IDs on the left and then click the Add ID button .
- Select A new digital ID I want to create now, and click Next.
- Select Windows Certificate Store, and click Next.
- Enter your information, when you sign a document, this will appear in the Signatures panel.
- Select 1024-bit RSA from the Key Algorithm option (it is the most compatible).
- Select Digital Signatures and Data Encryption from the Use Digital ID for option.
- Click Finish to generate and store the ID.

Use the Self-signed Certificate with Print2PDF
After you generate the self-signed key, you can use it with Print2PDF. Do the following:
- Print a document to the Print2PDF printer.
- Enable the Add Digital ID feature.
- Click Edit Digital ID…
- Click Select… and choose your Digital ID from the list, then click OK.
- Click OK again and choose Save to create the signed PDF.

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