We do not use the signature to indicate it is a legal document. We use the signature function to indicate who was present for a meeting. We're having difficulty not being able to correct typos or change the wording of the document after the signatures are in place. There has to be a way to edit the document after it has been signed.
Could you please let me know whether you have added eSign or digital signature on your PDF.
If its a digital sign, then you might need to first remove security from the PDF and then make changes.
or if you have added esign, then you might need to cancel the transaction, edit the document and then send it again for signing.
Hope this is helpful.