Just upgraded from Adobe Acrobat XI to Adobe Acrobat Pro 17 and I can no longer clear my digital signature from a document I created months ago. I usually copy the document and rename it, then clear the signature, make changes and resign. I no longer see an option to right click and clear the signature.
As per the description above, you are not able to remove the digital signature from your PDF files, Is that correct?
Let us know how it goes.