Before sending our contracts to customers, we need to lock all fields so that customers cannot edit or select the fields; or flatten the PDF.=. The only fields that we want active for the customer are signature boxes. In order to do this, we currently have to open the PDF in Apple's Preview... then export the file AGAIN as a PDF. Then open again in Adobe as it will now be a flat PDF file. Then we have to send the file to the client and manually insert all of the signature fields where necessary.

This is a tremendous waste of time and something that should be available within the Adobe software.