PDF24

Why do you need to waste hundreds of dollars in pdf app subscriptions, when you can just open your browser, see some ads and edit your pdf for free.

PDF24 is an outstanding free PDF toolkit that punches well above its weight. Their online interface is clean and efficient. The "Edit PDF Bookmarks" tool is especially useful for maintaining navigation and structure in long documents — a feature usually locked behind premium software—was the saving grace for me today. Highly recommend them!

Easy to use, even with an animated box design that clearly explains what the function is used for.