If you want to edit and sign a PDF document, you need to use a professional PDF editor. The following are the steps related to editing, I hope I can help you ~

Step 1: After successfully installing the PDF editor, double-click to open it. Then select "Open"-"Browse" and select the PDF document we need to edit according to the instructions.

Step 2: After opening the document, select "Protection"-"Management" in the interface toolbar.

Step 3: Then select Add-Draw Signature in the pop-up page, or import a signature from a file.

Step 4: Next, use the mouse to sign the "Draw Signature" page. You can adjust the signature color at the bottom of the page, and click OK after signing.

Step 5: Next, set the signature name and password.

Step 6: When finished, use the mouse to select the signature.

Step 7: Then click the left mouse button in the blank space (where signature is required) to complete the signature.

Step 8, finally enter the password.

Step 9: Remember to save the file when you are finished.