What is the latest Adobe Acrobat/Acrobat Reader version (of PDFs) that the USPTO accepts?

There are two ways to check:

First look at the EFS-Web Compatible Hardware and Software which includes information on compatible hardware and software, including operating systems (Mac OS-X, Windows, RedHat), browsers (Internet Explorer, Firefox), PDF creation software (Acrobat Reader, Acrobat, others), Java, security and cookies.

If that doesn’t answer your question, check the EFS-Web Announcements page and search for “Acrobat.”

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