Learn how to visually compare two PDF documents using free GUI-based software, a command-based tool, or an online tool for Windows 11/10.

Got two similar Google Docs documents? Here's a quick way to compare documents in Google Docs using Docs' built-in Compare Documents feature.

If you were asked to write a program to compare two PDF files and show the differences, how hard do you think that would be? If you are [serhack], you’ll make it much easier than you might guess.

Do you need to compare two files to see how they're different? On Windows 11 (and 10), you can use the FC command without needing third-party tools, and in this guide, I'll explain how.