Learn how to lock a PDF and password protect PDF file from editing, copying, sharing. This guide provides useful tips to help you lock PDFs like a pro.

Looking for the best tools to lock a PDF so it cannot be edited? Rest assured that we've got a few great options to choose from.

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.

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 ...

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

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 ...

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.