Leaving some fields open and auto numbering an invoice.
I know very little about PDF's and used Word for a long time but I recently moved over to PDF's for my invoicing. I have made a template for my invoices that I open each time for a new client and fillout certain fields and then save it. Most of the document is read only as it is common to every invoice. I have set up an auto numbering field that generates a new invoice each time it is opened. I have found that if I go back to open an existing quote for a client if I save it under the same name it will give it a new invoice number. I have found a work around and I go into properties and under security I enable a password and this stops the invoice number renewing each time. This is great as the client is unable to modify any content in the quote however I require them to complete 2 fields on the document and email it back. The first field is a number they need to enter that is unique (the reason is not important) and the other field is their signature. How can I create a PDF that will auto number the invoice and not issue a new number when opened and saved again, leave the single field open for this number entry and the last field to be signed with a digital or manual signature?
