The best PDF editors let you change and add text, edit images, add charts, sign your name, fill out forms, and much more.

I took the time to review a number of these apps and websites to come up with a list of exactly what you're looking for. Here's my take after years of using these free PDF editing apps:

Sejda PDF Editor is one of the few options that allows you to edit existing text in the PDF without adding a watermark. Most editors either only let you edit the text you add yourself, or they support text editing but throw watermarks everywhere.

Additionally, this tool runs entirely in your web browser, so you can easily get started with it without having to download any programs. But you can also use the desktop version if you prefer to use it that way.