May applicants use their own ADS form or scan the USPTO fillable one when submitting PG-Pubs?

No. The USPTO ADS fillable form must be submitted as a text-based PDF file. A scanned version of the ADS fillable form will be rejected via EFS-Web because EFS-Web will not be able to auto-load scanned in data into backend systems.

USPTO FAQ - Questions and Answers (13AUG2007)