Secure PDF Files Made Simple For Free

Restrict editing of a PDF Users can still fill in form fields, sign, or add comments. Open the PDF in Acrobat, and do one of the following: Go to All tools > Protect a PDF and then select Protect with password from the Protect a PDF toolset in the left pane.

How to Lock a PDF File Open the PDF in Adobe Acrobat Pro DC. Click on ?File? and select ?Protect Using Password.? Choose whether you want to restrict editing and printing or just restrict opening the document. Enter a password, and confirm it. Save the document.

How To Password Protect A PDF File Online Open SmallPDF on your MAC or PC. Locate the Protect PDF tool and click on it. Choose your file, or drag and drop it into the field. Input your top-secret password and click ?Encrypt PDF?. Download your new password-protected file.

Right-click on the PDF you want to restrict and select 'Make Secure PDF'. Select the restrictions you'd like to apply, including restricting access after a certain date, which can be found in the ?Expiry & Validity? tab. By default, editing, copying, and printing are disabled.

Open a file in Acrobat and choose ?Tools? > ?Protect.? Select whether you want to restrict editing with a password or encrypt the file with a certificate or password. Set password or security method as desired. Click ?OK? and then click ?Save.?

On Windows, just follow these steps: Right-click your PDF. Select Properties. Choose Read-only. Click OK.

Add a password to Adobe Acrobat (pdf) Open the PDF and choose Tools > Protect > Encrypt > Encrypt with Password. If you receive a prompt, click Yes to change the security. Select Require a Password to Open the Document, then type the password in the corresponding field.

How to password protect a PDF Click the Select a file button above, or drag and drop a PDF into the drop zone. Enter a password, then retype it to confirm the password. Click Set password. Download the password-protected PDF document, or sign in to share it.