I presently have an interactive PDF order form recently designed/developed in Acrobat Pro that works like a charm. One of the main features of the form is that it provides a signature field for adding a digital signature that renders the form read-only to prevent further changes to the form. Once a digital signature has been added, the user can then elect to send the form in an email file attachment in one of three ways, namely: 1) open the email program s/he commonly uses to compose an email and attach the PDF file the way most do 2) implement the mailDoc () method that performs the same task (using a button field that remains enabled after assigning a digital signature to the form) displaying an email draft containing the PDF file attachment, ready to be completed and sent by the user, or 3) go to the file in Windows 10 File Explorer and access the context menu to send in an email file attachment (if an email feature has been provided in the context menu). All considered I would like to know what others may deem the most preferred method to use to send the PDF in an email file attachment? Thank you ahead of time.