You can embed a PDF file into a cell of an Excel worksheet and then use Excel's security features to lock the object. This allows you to take advantage of both technologies.

Microsoft Word offers the ability to password protect PDF files. Read to know how to lock PDF from editing using Microsoft Word.

The widely used PDF format supports data-saving encryption, allowing you to protect sensitive documents so that only those with the correct password can access them. In the old days, you’d need a ...

“Is there any way to password-protect and lock a sensitive PDF file before sending it as an attachment through email? I cannot afford Adobe Acrobat Pro and free primopdf didn’t work for me ...

How to Lock PDF Files. In the digital age, business documents can be easily leaked or altered. Adobe's portable document format allows strong encryption using a password, certificate or a rights ...

You can save a PowerPoint presentation as a PDF to lock its content and formatting in place, so that other people can view the file but can't make changes.

This post will show you how to lock a file or folder in Windows 11/10. You can use the built-in method to encrypt folders or third-party apps.