625.2 (A) Acceptable File Formats for the Deposit Copy(ies) Accompanying an Online Application
If the applicant uploads a deposit copy(ies) using any of the acceptable file formats listed on the U.S. Copyright Office’s website, the effective date of registration will be the date that the Office received the deposit copy(ies), provided that the file can be opened and provided that the applicant satisfied the minimum requirements for an acceptable application and paid the applicable filing fee as of that date.