3, PDF document digital signature methods:
ensure Acrobat more than a certificate of effective options and personal circumstances, the need for signature in the first choice to open the document, click on Acrobat toolbar button signatures;

Click the button to sign the document;

click continue to choose to create a new signature to the signature domain, with the mouse in the document signed by the election of regional delay in the region;

please click to confirm correct operation

certificate, select the use of TCLKING a certificate click OK button, there are plans