Take the WPS219 version as an example:
We recommend that you consider using WPS 219 to add a header or footer to a pdf. The operation steps are as follows:
1. Open the PDF Document;
2. click "insert-page number"/"insert-header and footer" (indicating that this function needs to be used by WPS members);
3. You can set the parameters of the page or header and footer to insert according to your requirements.