To search a PDF on your Mac for a specific word or phrase, you can use the search function in the built-in Preview app.

The files with AI extension represent the vector images created in Adobe Illustrator software. Graphics designers use Adobe Illustrator to create different types of images, like banners, logos, ...

This article explains how to change file extensions in Windows 11, as well as discusses the difference between file extensions and file types.

You can save a PowerPoint presentation as a PDF to lock its content and formatting in place, so that other people can view ...