Just wondering if one can password lock a pdf file that resides in Acrobat Adobe Cloud? Perhaps that's a redundant question since one presumes that all files in Adobe cloud are protected in the sense that one must know the login credentials (username & Password) to sign in to Adobe Cloud?
All of the files that you uploaded to Adobe Document Cloud are accessible only to you (or the person who signs in with the unique credentials: username & password). Nobody else has access to your cloud files.
Additionally, you can limit access to individual PDF documents by setting passwords using the desktop version of Acrobat Pro or Standard DC.
Please let us know if you have additional questions.
Thanks. Sounds like password protection is available only with pay for versions of Adobe like DC.