The operation method is as follows:
1. First, create a blank PDF document in WPS, and click Insert -PDF Signature-Create Signature.
2. Then select the PDF signature type.
3. Upload the signature content and click OK.
4. After the signature is created successfully, click Insert -PDF Signature-Select Signature.
5. At this time, you can see that the signature has been successfully inserted into the document and the size has been adjusted and moved.