Doc Scanner: Nerwei Scan
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About this app
Nerwei Scan is a professional, 100% FREE mobile scanner app and PDF converter that turns your smartphone into a powerful portable document scanner. Scan receipts, contracts, notes, business cards, invoices, certificates, and ID cards into high‑quality PDFs or JPEGs with no watermarks, no subscriptions, and no hidden fees. Designed for speed, clarity, and privacy, Nerwei Scan is the lightweight cam scanner alternative that professionals and everyday users trust for reliable, print‑ready results.
All‑in‑One Scanning and Conversion
Capture single pages or batch multiple pages into one PDF. Automatic edge detection, perspective correction, and intelligent auto‑crop ensure perfectly framed scans every time. Use iterative compression to produce small, optimized PDFs (often under 1MB per page) without sacrificing legibility—ideal for sharing via Email, WhatsApp, or cloud storage. Export to PDF, JPEG, or PNG and choose image quality to balance clarity and file size.
Smart ID Card Mode
Specialized ID Card scanning merges the front and back of IDs, driver’s licenses, and passports into a single professional page ready for printing or secure submission. This feature is perfect for onboarding, verification, travel documents, and administrative workflows where a combined, print‑ready ID is required.
On‑Device OCR and Searchable PDFs
Extract editable text from scans with fast on‑device OCR. Convert paper documents into searchable PDFs, copy recognized text, translate content, or export text to other apps. Nerwei Scan’s OCR makes it easy to digitize receipts for expense reports, pull text from contracts, or archive academic records with searchable content.
Advanced Image Processing & Filters
Enhance every capture with professional filters:
Magic Color: Brightens and sharpens for a clean digital look.
Black & White: High‑contrast mode for crisp text documents.
Original: Preserve natural tones for photos and colored documents.
Automatic noise reduction, de‑skewing, and contrast adjustment deliver readable, print‑ready scans even from imperfect lighting conditions.
Powerful Document Management
Organize your scans with folders, tags, and custom filenames. Search your history quickly, rename files, and save directly to public Documents or Pictures folders for easy access in any file manager or gallery app. Merge, split, reorder, and delete pages within PDFs. Share scans instantly via Email, messaging apps, or upload to cloud drives.
Privacy First: Offline Processing
All processing happens locally on your device. No uploads, no external servers, and no tracking—your sensitive documents remain private and secure. Nerwei Scan respects your data and keeps everything on‑device unless you explicitly choose to share.
Why Nerwei Scan?
Completely Free: All features unlocked with no subscriptions.
No Watermarks: Clean, professional documents every time.
Optimized PDF Size: Small files for fast sharing and storage savings.
High Resolution: A4 scaling and DPI optimization for perfect printing.
Modern UI: Material 3 design for intuitive navigation and fast workflows.
Cam Scanner Alternative: Lightweight, fast, and reliable replacement for heavier scanner apps.
Common Use Cases
Scan receipts and invoices for expense tracking and reimbursement.
Digitize academic transcripts, certificates, and study materials.
Create print‑ready PDFs for contracts, forms, and signed documents.
Merge ID front and back for verification and onboarding.
Convert whiteboard photos into readable documents for meetings and notes.
Optimized for Real Life
Nerwei Scan is built to handle real‑world scanning: low light, angled shots, and multi‑page documents. Batch scanning speeds up workflows; quick export options make sharing seamless. The app is ideal for students, small business owners, HR teams, travelers, and anyone who needs a dependable mobile scanner and PDF converter.
All‑in‑One Scanning and Conversion
Capture single pages or batch multiple pages into one PDF. Automatic edge detection, perspective correction, and intelligent auto‑crop ensure perfectly framed scans every time. Use iterative compression to produce small, optimized PDFs (often under 1MB per page) without sacrificing legibility—ideal for sharing via Email, WhatsApp, or cloud storage. Export to PDF, JPEG, or PNG and choose image quality to balance clarity and file size.
Smart ID Card Mode
Specialized ID Card scanning merges the front and back of IDs, driver’s licenses, and passports into a single professional page ready for printing or secure submission. This feature is perfect for onboarding, verification, travel documents, and administrative workflows where a combined, print‑ready ID is required.
On‑Device OCR and Searchable PDFs
Extract editable text from scans with fast on‑device OCR. Convert paper documents into searchable PDFs, copy recognized text, translate content, or export text to other apps. Nerwei Scan’s OCR makes it easy to digitize receipts for expense reports, pull text from contracts, or archive academic records with searchable content.
Advanced Image Processing & Filters
Enhance every capture with professional filters:
Magic Color: Brightens and sharpens for a clean digital look.
Black & White: High‑contrast mode for crisp text documents.
Original: Preserve natural tones for photos and colored documents.
Automatic noise reduction, de‑skewing, and contrast adjustment deliver readable, print‑ready scans even from imperfect lighting conditions.
Powerful Document Management
Organize your scans with folders, tags, and custom filenames. Search your history quickly, rename files, and save directly to public Documents or Pictures folders for easy access in any file manager or gallery app. Merge, split, reorder, and delete pages within PDFs. Share scans instantly via Email, messaging apps, or upload to cloud drives.
Privacy First: Offline Processing
All processing happens locally on your device. No uploads, no external servers, and no tracking—your sensitive documents remain private and secure. Nerwei Scan respects your data and keeps everything on‑device unless you explicitly choose to share.
Why Nerwei Scan?
Completely Free: All features unlocked with no subscriptions.
No Watermarks: Clean, professional documents every time.
Optimized PDF Size: Small files for fast sharing and storage savings.
High Resolution: A4 scaling and DPI optimization for perfect printing.
Modern UI: Material 3 design for intuitive navigation and fast workflows.
Cam Scanner Alternative: Lightweight, fast, and reliable replacement for heavier scanner apps.
Common Use Cases
Scan receipts and invoices for expense tracking and reimbursement.
Digitize academic transcripts, certificates, and study materials.
Create print‑ready PDFs for contracts, forms, and signed documents.
Merge ID front and back for verification and onboarding.
Convert whiteboard photos into readable documents for meetings and notes.
Optimized for Real Life
Nerwei Scan is built to handle real‑world scanning: low light, angled shots, and multi‑page documents. Batch scanning speeds up workflows; quick export options make sharing seamless. The app is ideal for students, small business owners, HR teams, travelers, and anyone who needs a dependable mobile scanner and PDF converter.
Free PDF Scanner: Scan documents, ID cards to PDF. No watermarks, 100% Free!
Updated on
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 partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
• NEW: High-precision detection engine using LAB color space—perfect for scanning white paper on bright backgrounds! • NEW: ID Card Mode—easily capture and merge both sides of IDs into one high-quality document. • IMPROVED: Rock-solid edge detection with 20-frame persistence to eliminate jitter. • IMPROVED: Relaxed perspective filters for easier scanning at sharp angles. • NEW: Refreshed branding with a professional splash screen. • Optimized for Android 15.
