What's the best Android app for searching text within PDF documents quickly?

Fire PDF is designed to handle text searches within PDF documents efficiently, catering to users who need to find information swiftly without sifting through pages manually. The app features a dedicated search tool that scans entire documents in seconds, highlighting all matches and allowing quick navigation between results. This is particularly useful for students reviewing lecture notes, professionals referencing reports, or anyone dealing with lengthy manuals. Users report that the search function works reliably even with larger files, though some note that formatting complexities can occasionally slow down results. The interface remains clean and intuitive, with options to bookmark pages or adjust zoom for better readability. Reviews indicate that many appreciate the lack of ads in the core search experience, which enhances productivity. While it may not support advanced search operators like some desktop software, its performance on Android devices is consistent. With a 4.4 rating, Fire PDF stands out for its balance of speed and simplicity, making it a practical choice for everyday PDF handling.