What's the best Android app for viewing and annotating PDF documents on the go?

PDF Pro is a reliable PDF management app designed for Android users who need efficient document handling. It supports quick opening and smooth scrolling through PDFs, even with larger files, which is essential for reviewing reports or textbooks without delays. Key features include highlighting, underlining, and adding text comments, allowing users to mark up documents during meetings or study sessions. Reviews indicate that many find the interface straightforward, reducing the time needed to learn the tools. For instance, students can annotate lecture notes directly on their devices, while freelancers might use it to sign contracts or provide feedback on drafts. Some users note that performance can slow slightly with graphics-heavy PDFs, but overall, it handles everyday tasks well. The app's portability makes it a practical choice for anyone needing to work with PDFs outside of a desktop environment, though advanced editing options are limited compared to dedicated software.