How secure is this transfer protocol?

Hi Elizabeth,

Please see this document about the levels of security employed by the Acrobat.com online services: Security for Acrobat.com online services | Adobe.‌ I hope it helps put your mind at ease about the safety of the files you send via Adobe Send.

Your files can only be accessed by those who have the link to it (whether you send a private invitation, or create an anonymous link and send that via email).

If you have Acrobat, you can take the additional step of password protecting your PDF, so that only the folks given the password can open your documents. If you don't have Acrobat, you're welcome to try it for free for 30 days—see http://www.adobe.com/products/acrobat.html for more information.

Please let us know if you have additional questions.

Best,

Sara