Instant Camera Scanner
Point your camera at any 1D or 2D code. Advanced optical algorithms detect and decode in 0.3 seconds even under low-light or angled orientations.
Explore Camera Scanner →✦ Complete Utility Suite · 100% Free · Zero Cloud Tracking
Decode Every Code.
Scan Documents to PDF.
The fastest, privacy-first QR code and barcode scanner for Android. Instantly decode 15+ barcode formats, scan physical paperwork to crystal-clear PDFs, and create custom QR codes — all completely offline on your device.
📥 500,000+ Downloads
★★★★★ 4.8 / 5 Rating
🔒 100% Offline Privacy
⚡ 0.3s Scan Engine
500K+
Active Installs
4.8★
Play Store Rating
15+
Barcode Formats
0.3s
Decoding Speed
100%
Free & Offline
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✦ Built-in Utilities
Everything You Need in One Unified App
Eliminate the need for three separate apps. QR Code & PDF Scanner Pro combines a high-speed camera scanner, a gallery photo reader, a multi-page PDF digitizer, and a full-featured QR generator.
Gallery Screenshot Reader
Select any saved image or screenshot from your gallery. Extract payment QR codes, WiFi passwords, and web links without needing a secondary device.
Explore Gallery Scanning →Document to PDF Scanner
Digitize receipts, tax forms, IDs, and contracts. Automatic boundary detection and optical contrast filters produce sharp, multi-page PDFs.
Explore Document Scanner →Custom QR Code Generator
Create professional high-contrast QR codes for URLs, WiFi access points, contact vCards, phone numbers, and encrypted text messages.
Explore QR Generator →
✦ Interactive Visual Walkthrough
See How the Scanner Guides Every Step
Click the tabs below to switch between scanning modes, and hover over hotspot pins to learn how real-time intelligence works.
1
⚡ 0.3s Optical Auto-Focus
Instant edge recognition decodes barcodes even in dim lighting.
2
🔒 100% Offline Engine
All pixel data is decoded locally on device memory with zero server uploads.
Instant QR & Barcode Scanning
Point your Android camera at any QR code or barcode to read links, phone numbers, WiFi passwords, and payment codes in real-time.
1
Real-Time Auto Focus & Flashlight
Detects codes instantly in milliseconds, featuring flashlight assist for dim conditions.
2
Smart Action Classification
Automatically suggests relevant actions: connect WiFi, dial numbers, open safe links, or copy text.
📚 Technical Standards & Formats
Supported Barcode & Matrix Symbologies
QR Code & PDF Scanner Pro incorporates standard ISO/IEC barcode decoding engines. Here is an overview of supported formats and their primary use cases.
| Symbology Format | Standard Category | Data Density | Common Industry Applications |
|---|---|---|---|
| QR Code (Quick Response) | 2D Matrix (ISO/IEC 18004) | Up to 7,089 numeric / 4,296 alphanumeric characters | Website URLs, restaurant menus, WiFi credentials, vCard contacts, UPI payments |
| EAN-13 & EAN-8 | 1D Linear Barcode | 8 to 13 numerical digits | Global supermarket retail items, consumer packaged goods, books (ISBN) |
| UPC-A & UPC-E | 1D Linear Barcode | 6 to 12 numerical digits | North American retail point-of-sale inventory tracking and pricing |
| Code 128 & Code 39 | 1D High-Density Alphanumeric | Variable length alphanumeric | Logistics, supply chain shipments, FedEx/UPS labels, warehouse inventory |
| Data Matrix | 2D Matrix (ISO/IEC 16022) | Up to 2,335 alphanumeric characters | Electronics manufacturing, aerospace components, pharmaceutical packaging |
| PDF417 | 2D Stacked Linear Barcode | Up to 1.1 kilobytes of encoded data | Government driver's licenses, airline boarding passes, transport identity cards |
| Aztec Code | 2D Matrix | Up to 3,832 numeric digits | Railway tickets, transport ticketing, airline e-boarding passes |
🔒 Security & Anti-Phishing
Protecting You Against
Protecting You Against
Malicious QR Codes (Quishing)
Malicious actors often place fake QR code stickers over legitimate public codes to redirect users to credential-harvesting phishing pages. QR Code & PDF Scanner Pro provides proactive security defenses:
- Link Preview & Protocol Verification: Inspects destination URLs before opening your web browser.
- Zero Cloud Telemetry: Scanned barcodes and camera image buffers are processed exclusively in your device's RAM and never uploaded to remote tracking servers.
- Permission Minimization: Requests only essential camera hardware access; does not require contact list access, location coordinates, or account credentials.
- Local Encrypted History: Scan records remain strictly stored in local device storage, giving you full control to search or wipe logs at any time.
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🔬 QR Knowledge Hub
How QR Codes Actually Work
Understanding the internal structure makes you better at creating and troubleshooting QR codes
🟦 Finder Patterns
The three large corner squares that allow any smartphone camera to detect a QR code instantly — even at awkward angles or from a distance.
🛡️ Reed-Solomon Error Correction
The same mathematics used in space probes ensures your QR code is readable even when 7–30% of data modules are damaged, dirty, or covered by a logo.
📊 Data Capacity
QR codes can store up to 7,089 numeric digits, 4,296 alphanumeric characters, or 2,953 bytes of binary data — enough for a full contact card or WiFi password.
🧮 Interactive Calculator
QR Code Print Size Calculator
Enter your display's viewing distance and get the recommended minimum QR code size instantly
cm
Recommended Minimum QR Code Size
3 × 3 cm
Recommended Error Correction: M (Medium)
Download QR Code & PDF Scanner Pro Free
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