Hello, Sunflower Intellectual Property has the answer for you:

First of all, the U.S. trademark acceptance notice only has an electronic version, not a paper version;

You can receive it by email to the email, but it is not a PDF version, it is an email in the form of ordinary text.

For trademarks submitted through an agent, you can receive a complete PDF version of the acceptance notice.

It is recommended to consult a professional agency to apply to avoid problems caused by unprofessional submissions, which will lead to more modification fees in the later stage.