PDF Scanner - Document Scanner

Contains adsIn-app purchases
4.7
400K reviews
50M+
Downloads
Content rating
PEGI 3
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About this app

Looking for an easy-to-use document scanner? Join over 10,000,000 users and give ACE Scanner - PDF Scanner a try!

Using your device’s camera, this free document scanner app can quickly scan ID cards, passports, documents, and more into PDFs. It can also recognize text in images, convert images to PDF, and allow you to share your scan results as PDF, JPG, or TXT with one tap.

With over 100,000 new users each day, this simple and FREE document scanner is your top choice to boost productivity! Download it now!


How can ACE Scanner - Document Scanner help you?
🗂Scan business cards, receipts, invoices, and more for office use.
📒Scan PPT, notes, books, and more to improve learning efficiency.
🪪Scan ID card, Passport, driver's license, and other important certificates.
📠Scan more: tax roll, memo, map, painting, travel brochure, manuscript...


Why choose ACE Scanner - Document Scanner:
1. All-in-One Document Scanner
This professional document scanner can quickly scan all types of documents into PDFs, such as receipts, notes, invoices, photos, business cards, certificates, whiteboards, and more. It can also convert images to PDF, PDF to images, Word to PDF, and images to text. Plus, you can print out the scan results instantly via Cloud Print.

2. Powerful PDF Reader & PDF Manager
✔️Auto-scan all your PDF files and display them in a clear list
✔️Quickly open and read PDFs
✔️One-tap merge PDFs
✔️Easily manage PDFs: copy, rename, doodle, sort by date or name, etc.
✔️Choose search categories (Folders, Docs, etc.) to quickly find what you need

3. High Quality Scan Results
Documents processed by ACE Scanner are sharp, clear, and high-resolution, thanks to the precise edge detection, smart cropping, and auto-enhancement features. It also provides multiple filters - Docs, Image, Enhance, Black & White, etc. - to further optimize the scan results.

4. One-Tap Sharing
You can effortlessly share scanned files in PDF, JPG, or TXT formats via email, messaging apps, or social media.

5. Practical Documents Editing
✔️Add/edit/delete any pages individually in the document
✔️Doodle on your files with different colors
✔️Convenient document layout adjustment
✔️Multiple PDF page sizes (Letter, Legal, A4, etc.) to meet all needs

6. Add E-Signatures
ACE Scanner supports adding electronic signatures to scanned documents. Easily generate and send documents with your e-signature!

7. Custom Security Watermarks
You can quickly create custom anti-counterfeiting watermarks to protect your files. Adjust the text/size/transparency/color of the watermark as you prefer.

8. OCR Text Recognition
ACE Scanner adopts OCR (Optical Character Recognition) technology to help you accurately recognize text on images or papers, and export text for later copying, editing, searching, and sharing.

9. Quick Search
Enter a keyword, and our quick search feature will swiftly locate your file across multiple folders. Plus, with the OCR search feature, you can easily find text within images and notes.

Download ACE Scanner - Document Scanner now! Say goodbye to bulky file cabinets and enjoy a more productive life!


UPCOMING FEATURES:
👉Add annotations directly to scan results.
👉Lock confidential documents with passwords and share them securely.
👉Backup and sync your files to Google Drive, OneDrive, Dropbox, Evernote, etc.


PERMISSION REQUIRED:
* For users of Android 11 and above, All Files Access permission is required to access, manage, and edit all PDF files on your device.
Updated on
Feb 9, 2026
Events & offers

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
396K reviews
Deee
February 5, 2026
excellent scanner , user friendly, even a small kid can operate this app .... I rate 7* stars out of 5.... it's that great 👍, ideal app for school kids, young students not only that even a housewife can use this app very easily for scanning cooking recepie menus or any bill or daily scrabbles , receipts . This app is AI driven and " THE BEST PART IS AT NO COST". I've been using free version.
196 people found this review helpful
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Sajan Uddin.
February 5, 2026
the perfect app for scanning PDFs... especially for students like me who require scanning of some hundreds of pages for notes,etc.... without any premium and also it's Al based function is the best, you don't need to crop your pages, it does automatically reducing the time and efforts taken.
152 people found this review helpful
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Roshini Kadambari
December 14, 2025
the perfect app for scanning PDFs... especially for students like me who require scanning of some hundreds of pages for notes,etc.... without any premium and also it's AI based function is the best, you don't need to crop your pages, it does automatically reducing the time and efforts taken.
940 people found this review helpful
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QR Code Scanner.
January 23, 2026
Hi Roshini! We're thrilled to hear the app is perfect for your PDF scanning needs and helps save time with AI features. Thank you for sharing your experience! We hope it continues to make studying and scanning easier for you.💗

What’s new

🌟 Support adding a single watermark
🌟 Support adjusting watermark spacing and angle
🌟 Optimize scanning experience