

Then there are PDF annotation apps, including macOS Preview, Xodo, and most mobile PDF apps. They're built to help you read PDF files like you would a book, and help you flip to the page you want, search through the book, highlight text, and perhaps fill out PDF forms and sign them digitally. The PDF apps you've likely used the most-Adobe Reader, Apple iBooks, Windows Reader-are PDF reader apps. For more details on our process, read the full rundown of how we select apps to feature on the Zapier blog. We're never paid for placement in our articles from any app or for links to any site-we value the trust readers put in us to offer authentic evaluations of the categories and apps we review. We spend dozens of hours researching and testing apps, using each app as it's intended to be used and evaluating it against the criteria we set for the category. Starting with iPadOS 13, you can now pair and use a mouse with your iPad.All of our best apps roundups are written by humans who've spent much of their careers using, testing, and writing about software. But for everyone else, PDF Expert 7 is a better option.Īpple Pencil isn’t the only input method that you can use on your iPad. If you need to make your way through a 100-page research document on your iPad Pro, LiquidText will feel like a godsend. You can take notes, make drawings, then link them to a particular part of the PDF. The app has a unique interface where you can select text from the PDF and drag it to the research area. This is the big-daddy of PDF viewing and editing apps.

If you already use GoodNotes 5 for handwritten notes, you can try using it for annotating PDFs as well. While GoodNotes 5 has a feature-rich Pen and Marker tool, the highlight tool is missing altogether (and the Draw in Straight Line option isn’t a good alternative). GoodNotes 5 is considered the most powerful note-taking app on iPad but only a few of the features translate to highlighting and annotating PDFs. There’s no freeform doodle feature either. Highlighting with Apple Pencil is not seamless, plus you can only add notes to parts that you highlight. If you simply want to highlight PDFs, you can use the built-in Apple Books app, but we found the app a bit too cumbersome to use.
