What iOS app lets you add comments and annotations to PDF files?

Adobe Acrobat Reader excels in providing a comprehensive suite of annotation tools for PDF files on iOS. Users can easily add comments, highlight text, draw freehand, insert stamps, and use various other markups to collaborate and provide feedback on documents. The app's intuitive interface makes it simple to navigate and use these annotation features, enhancing productivity and collaboration. The ability to add comments and annotations directly on your iOS device makes Adobe Acrobat Reader an indispensable tool for students, professionals, and anyone who needs to review and provide feedback on PDF documents. Users appreciate the flexibility and ease of use of the annotation tools, making it a top choice for PDF markup.