Pros

PDF Reader - PDF Viewer delivers fast, high-quality PDF rendering with smooth scrolling, instant page jumps, and precise text search. It handles large documents without lag and supports bookmarks, thumbnail navigation, and reflow mode for easier reading—making it ideal for quickly accessing and consuming PDFs on any device.

Powerful annotation and editing tools let you highlight, underline, add sticky notes, draw, and fill forms with ease. Built-in OCR converts scanned documents to searchable text, while signing, merging, splitting, and conversion to/from popular formats streamline review and collaboration for professionals and students.

Seamless cloud integration and secure sharing keep files accessible across devices. Sync with Google Drive, Dropbox, and OneDrive, set passwords or permissions for private documents, and quickly share links or export optimized files. Offline access and compact file compression ensure productivity wherever you work.

Cons

Key features like advanced editing, OCR, form filling, and cloud sync are often locked behind a premium subscription. Free users may face persistent ads, limited export or batch-processing options, and recurring payments to unlock essential tools, reducing the app’s usefulness for occasional or budget-conscious users.

Loading and rendering large or complex PDFs can be slow and memory-intensive, causing noticeable lag and occasional crashes. Users handling high-resolution scans, long documents, or many embedded images may experience delays, reduced responsiveness, and difficulty reliably searching, annotating, or navigating large files.

OCR and text-recognition accuracy can be inconsistent with low-quality scans, nonstandard fonts, or complex layouts. Extracted text often needs manual correction, and editing tools can struggle to preserve original formatting. Collaboration features and cross-device sync may also be limited or unreliable in some versions.