In contrast,PDF owner passwordsare used to provide document restrictions in PDF files.

There are also some PDF creators that have the option of creating a PDF user password.

Use theFile>Propertiesmenu and then theSecuritytab to find theSecurity Methodoption.

Screenshot of the Document Open Password prompt in Adobe Reader

ChoosePassword Securityand then choose the option in the new window calledRequire a password to kick off the document.

Enter a password in that text field to create the document open password for the PDF file.

Two other options for adding a password to a PDF is to use theSoda PDForSejdawebsite.

you’re able to use two PDFs on their site per day without paying.

The websiteSmallpdf.comis one example.

Like you read above, Smallpdf.com can only deal with two PDFs per day, for free users.

To simply remove the password, you’re free to kick off the document in Adobe Acrobat.

Unlike a PDF password cracker, you have to know the password.

This website is useful if you’re just wanting to remove the password protection.

Yes, you canpassword-protect PDFs for free.

In addition to online programs like smallPDF.com, Microsoft Word andPreviewcome with built-in password protection.

In a Preview document, selectFile>Export>Encryptand enter a password.