You may have to pay for these, but they're some the top PDF software we've tried. Optional pricing upgrades are always noted, but every apps and platforms we tried here offers a completely free PDF editor. As part of our review process, we’ve tested out each free PDF app’s integrated tools, filetype support, collaboration and cloud storage facilities. Here's what we learned and why we recommend using these apps and platforms online, on desktop, and on mobile. Our team of PDF experts have been hand-testing the top-rated apps and platforms to find out which is really the best. But add in e-signatures, forms, and enhanced security tools, and you do have some of the best Adobe Acrobat alternatives without any subscriptions or lifetime licenses. There are limitations, and few free PDF editing software is as feature-packed as the likes of Adobe Acrobat. The best PDF editors we've tried - yes, even free versions - let you create and design seriously professional documents. They literally keep millions of businesses on the same page.