Instant PDF Reader
Adobe / PSPDFKit GmbH
About this app
- Age 10
- Updated Mar 25, 2026
- OS IOS / Android
Editor reviews
Instant PDF Reader is a fast, lightweight PDF viewer and organizer built for efficient work and business. Instantly open large files, navigate smoothly, and find content quickly with full-text search. Mark up documents with highlights, notes, and stamps, then fill forms and e-sign in seconds. Scan paper to PDF and extract text with OCR for easy editing and sharing. Secure your files with password protection and keep everything in sync via popular cloud storage services. Ideal for high-efficiency office workflows, remote work, and mobile document management, with keywords such as PDF reader, PDF editor, scan to PDF, OCR, e-sign, and cloud storage.
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How to use:
1. Download and open the app, then allow file and camera access to import and scan documents.
2. Sign in or continue as a guest, and connect cloud drives to sync your PDF library if needed.
3. Open a PDF from your device, cloud, or scan paper to PDF using the camera with optional OCR to extract text.
4. Annotate and edit: highlight, underline, add comments, fill forms, and e-sign using your saved signature.
5. Organize and share: merge or reorder pages, rename and compress files, then share via email or link and save back to cloud.
6. Explore advanced tools: use global search and bookmarks, switch reading modes like night or continuous, and set passwords for document security.