Here is how you can password protect your PDF file online for free. First, simply choose the PDF file you want to password protect. And now, to password protect this PDF file, open your browser and search for “adobe password protect.” Open the first link.

Now select the file and open it. Set the password, confirm it, and click on set password. It will be done in a few seconds. After it is done, you can also get a link to your password protected PDF; for that you will have to sign in using Google, Adobe, or Facebook, etc. Anyway, for the first file you can directly download the password protected file. This PDF will now require a password to open it.

However, please note that only one PDF file can be password protected without logging in. If you want to password protect multiple files, you will require to log in using Google or Adobe.

Thank you very much.