1, PDF signature certificate;

2.Adobe Acrobat software;

3、? PDF document to be signed.

(2) Open adobe? Acrobat software, configuring timestamp

Time stamp is a trusted time source, which can prove the trusted time of document signature. If no time stamp is added, the default time of PDF electronic signature is the local time of the computer.

(3) using adobe? Acobat software electronically signs PDF documents.

After configuring the timestamp, we can digitally sign the document. The signing steps and signed document pictures are as follows:

①? Select signing certificate and appearance

②? Signed PDF document