Renaming PDF on Inserting into Container

[JTSmith]

I send out to customers a PDF to sign. I either receive it back via email, where they have printed, signed, scanned and named it something, or via fax which comes to my email as a PDF with a horribly long serial number. They are always PDFs, and I'm hoping there is a way when I import them into the container field, I can have a script trigger or something that renames the file in the format I want. For example: Last Name, First Name -Job Number.pdf

Is this possible?

Thanks.

[john renfrew]

The script trigger can run a script which

A: exports the container as a file with a known name and then re-import it, then delete the file if its not in the temp folder.

B: depending what method you are using to get the file in the first place, use OS tools or Scriptmaster to rename the file first