Is OnePDF free to use?

Yes! OnePDF provides a free version that includes standard PDF compression, file merging, image to PDF conversion, and PDF reading. A Premium version is also available for unlimited processing without ads.

Is it safe to process confidential documents on OnePDF?

100% safe. All PDF processing (compressing, merging, signing, encrypting, and converting) is performed 100% locally on your device. Your documents are never uploaded to any remote server.

How do I compress a PDF file in OnePDF?

Simply open OnePDF, select 'Compress PDF', pick the file you wish to shrink, choose your compression level, and tap save. Your file will be compressed in seconds.

Does OnePDF require an internet connection?

No! OnePDF works completely offline because all features and document processing run locally on your mobile device without needing to upload files to the internet.

How do I add an electronic signature to a PDF?

Select 'Sign PDF', open your target document, draw your signature with your finger on screen, position it on the desired page, and save.

Is OnePDF available for devices other than Android?

Currently OnePDF is fully optimized for Android users on the Google Play Store. iOS support is currently under active development.

Are there any file size limits when compressing or converting?

OnePDF is designed to handle large documents directly on your smartphone. The free version handles standard file sizes seamlessly, while the PRO version unlocks batch conversion and extreme compression for multi-hundred page documents.

What encryption standard does OnePDF use for PDF protection?

OnePDF utilizes industry-standard AES 128-bit and 256-bit password encryption to ensure your protected files cannot be opened without the correct password.

How do I upgrade to OnePDF PRO?

You can upgrade directly inside the OnePDF Android app using Google Play In-App Purchases (Credit Card, GoPay, OVO, ShopeePay, DANA, or carrier billing).

Can I restore my PRO purchase on a new phone?

Yes! Simply log in with the same Google Play Account on your new device and tap 'Restore Purchases' inside OnePDF settings.

What image formats can be converted to PDF?

OnePDF supports JPG, JPEG, PNG, WEBP, and BMP formats to convert into clean, multi-page PDF documents.

How are payments processed for OnePDF PRO?

All transactions are processed securely via your Google Play Account.

How does the document camera scanner work in OnePDF?

Select 'Scan Document', point your camera at any paper sheet or receipt. OnePDF automatically detects edges with 4-corner perspective correction and saves clean, high-resolution PDF files with 100% on-device processing.

New Feature

Document Scanner to PDF

Name: OnePDF
Rating: 4.8 (1250 reviews)
Author: OnePDF

Turn your smartphone camera into a portable document scanner. Capture paper documents with auto edge-detection, 4-corner perspective correction, and save as clean, sharp PDF files instantly.

Get on Google PlayFree • No Sign Up • Android

Edge Detection

Auto AI

Multi-Page Scan

Unlimited

Processing

100% Offline

Why Choose This Feature

Key Advantages & Capabilities

AI-Powered Edge Detection

Automatically identifies document borders on any background surface using advanced ML Kit technology for perfect framing every time.

4-Corner Perspective Correction

Eliminates skew, tilt, and angle distortion so your scanned documents look perfectly flat like office scanner results.

Multi-Page Batch Scanning

Scan unlimited pages continuously and combine them into one neat, sequential PDF document without interruption.

How It Works

3 Simple Steps on Mobile

Point Camera at Document

Aim your phone camera at any paper document — contracts, receipts, ID cards, or handwritten notes. The scanner auto-detects document edges instantly.

Adjust Boundaries & Capture

Fine-tune the 4-corner boundary points for precise cropping and perspective correction. Add multiple pages in one scanning session.

Save as PDF

Convert all scanned pages into a single organized PDF document. Name your file and save or share instantly.

Frequently Asked Questions

The scanner uses your device's camera capabilities. For best results, ensure adequate lighting. The auto-enhancement will optimize contrast and brightness of the scanned output.

Try Document Scanner to PDF Now

Experience instant document processing on your Android smartphone. 100% free and secure.

Download OnePDF App

Explore Other PDF Utilities

Fast PDF Compression

Reduce PDF file size up to 80% without ruining text legibility or image clarity. Save your phone's storage space.

Image to PDF Converter

Convert photos, receipt scans, or JPG/PNG images into crisp, formatted PDF documents instantly from your gallery.

Merge PDF Documents

Combine multiple separate PDF files into a single unified file in seconds with custom page ordering.

PDF Password Protection

Secure your confidential reports and sensitive documents with high-grade password encryption.

Electronic Signature

Draw and place your digital e-signature directly on your phone screen without printing paper.

File Manager & Reader

Open and view all PDF files with a fast visualizer, instant text search, and organized folder management.