To digital sign PDF, you need to have the necessary certificate first. Under Fluid PDF, there are 3 locations to access the certificate: Default, File and Store. You can either use a self signed certificate from Fluid PDF or a certificate generated from a Certificate Authority.
To start configure for PKI signing. Please follow the below to setup the signature:
Once Signature Setup is clicked, the first step is signature appearance. Under Using PKI Signing Method, select the Binding Digital Signature with Graphic File.
Right click the Select button will open up two options: Custom Stamp Dialog and Windows File System.
If Custom Stamp Dialog is checked, the select button will display the below dialog:
If Windows File System is checked, the Select button will display the Windows File Explorer.
Click OK to save the Signature Setup. Load the PDF you need to sign. Then click Signature below:
Drag and drop the location of the signature.