Note:
The Put function only runs if a form is certified. Acrobat and Adobe Reader cannot verify that the form is certified until after the initialize event initiates. To use the Put function on certified forms prior to the form rendering, use the docReady event.
Put(s1, s2 [, s3 ])
s3 (Optional)
If you do not include a value for s3, the function sets the code page to the default value. The application ensures that encoding of the data to upload matches the specified code page.
Nothing if the FTP server has permitted the user to upload some XML data to the pub/fubu.xml file. Otherwise, this function returns an error.

Put