QuickScanner turns your device camera into a full document scanner — with automatic edge detection, perspective correction, PDF export, QR code reading, image editing, and cloud backup. This guide walks through every feature so you can go paperless with confidence.
Getting Started
- Launch QuickScanner — you land on the camera viewfinder ready to scan.
- Grant camera permission when prompted so the app can capture documents.
- Frame a document in the viewfinder — blue corner markers appear as edges are detected automatically.
- Tap the shutter to capture. Adjust the crop handles if needed, then confirm.
- Export as PDF or save the scan to your library for later.
Hold your device parallel to the document for the best edge detection. The app corrects minor angles automatically, but a straighter shot gives cleaner results.
Interface Overview
Main Screens
Capture
Camera
The viewfinder with real-time edge detection overlays and shutter button.
Review
Crop & Adjust
Fine-tune document boundaries, apply filters, and confirm the scan.
Organize
Document Library
Browse all scanned documents with thumbnails, dates, and page counts.
Export
PDF Builder
Arrange pages, reorder, and export to a polished PDF file.
Utility
QR Scanner
Detect and decode QR codes and barcodes from the camera feed.
Edit
Image Editor
Crop, rotate, adjust brightness and contrast, and apply enhancement filters.
Toolbar
- Scan mode toggle — switch between Document scan and QR code mode
- Flash — toggle the camera flash for low-light conditions
- Library — access your saved scans
- Settings — app configuration
Scanning
QuickScanner offers flexible scanning modes for different document types.
Single Page Scan
- Point the camera at a document.
- Wait for the blue edge overlay to appear, confirming detection.
- Tap the shutter button to capture.
- Review and adjust the crop on the confirmation screen.
- Tap Save to add the page to your library.
Multi-page Scanning
- After capturing the first page, tap Add Page instead of Save.
- Continue scanning additional pages — each is added to the current document.
- Reorder pages by dragging thumbnails in the page list.
- When all pages are captured, tap Done to save the complete document.
Scan Filters
| Filter | Best For |
|---|---|
| Original | Color documents, photos, brochures |
| Grayscale | Reducing file size while keeping detail |
| Black & White | Text-heavy documents, printed pages |
| Enhanced Text | Low-contrast text, faded documents |
Use Batch mode for multi-page documents. It keeps the camera active between pages so you can scan a stack of papers without interruption.
Edge Detection
QuickScanner automatically identifies document boundaries in the camera viewfinder.
How It Works
- Real-time image analysis detects rectangular edges as you frame the document.
- Blue corner markers and an outline overlay highlight the detected area.
- The detection adjusts dynamically as you move the camera.
Manual Adjustment
- After capture, four drag handles appear at the corners of the detected area.
- Drag any handle to fine-tune the boundary. The preview updates in real time.
- Tap Auto-detect to re-run edge detection if you want to start over.
Perspective Correction
Once the edges are confirmed, the app automatically straightens the document:
- Skewed angles are corrected to produce a flat, rectangular output.
- The result looks as if the document were scanned on a flatbed scanner.
- Correction is applied before filters, ensuring consistent image quality.
Edge detection works best against a contrasting background. Place documents on a dark surface if the paper is white, or vice versa.
PDF Export
Convert your scans into polished PDF documents for sharing, printing, or archiving.
Exporting a Document
- Open a document from your library.
- Tap Export as PDF.
- Choose paper size (A4, Letter, or Original).
- Set image quality (High, Medium, or Compact).
- Tap Generate to create the PDF.
- Share via email, messaging, or save to the file system.
Multi-page PDFs
- Documents with multiple scanned pages are combined into a single PDF.
- Reorder pages before export by dragging thumbnails.
- Remove unwanted pages from the document before generating.
Choose Compact quality for documents you need to email, where file size matters. Use High for archival copies you want to print later.
QR Scanner
QuickScanner includes a built-in QR code and barcode reader.
Scanning a Code
- Switch to QR mode from the toolbar toggle.
- Point the camera at a QR code or barcode.
- The code is detected and decoded automatically — results appear instantly.
Supported Actions
| Code Content | Action |
|---|---|
| URL | Open in your browser |
| Plain text | Copy to clipboard |
| Wi-Fi credentials | Connect to the network |
| Contact card (vCard) | Add to your contacts |
| Email address | Compose a new message |
| Phone number | Call or save the number |
Scan History
- All scanned codes are saved with a timestamp and decoded content.
- Browse your history to revisit previous codes.
- Tap any entry to perform the action again (open URL, copy text, etc.).
Image Editing
Enhance scanned images before saving or exporting.
Tools
- Crop — trim unwanted margins or content from the image
- Rotate — rotate 90 degrees clockwise or counterclockwise, or fine-tune angle
- Brightness — increase or decrease overall image lightness
- Contrast — sharpen the difference between light and dark areas
- Sharpen — enhance text and line clarity
- Filters — apply Original, Grayscale, Black & White, or Enhanced Text modes
Workflow
- Open a scan from your library.
- Tap Edit to enter the image editor.
- Apply adjustments — each change previews in real time.
- Tap Save to apply changes, or Cancel to discard.
Edits are applied to the saved scan. If you want to keep the original, duplicate the scan before editing.
Cloud Storage
Back up your scans and access them from any device by connecting a cloud storage service.
Supported Services
- Google Drive
- iCloud Drive
- Dropbox
- OneDrive
Uploading Scans
- Go to Settings > Cloud Storage and sign in to your preferred service.
- Choose a destination folder for your scans.
- Upload individual scans from the library, or enable Auto-upload to back up new scans automatically.
Enable Auto-upload if you scan documents frequently. Every new scan is backed up immediately so you never lose an important document.
Settings
Camera
- Default Filter — choose which filter is applied automatically to new scans
- Auto-capture — automatically take the photo when edges are detected
- Flash Mode — auto, on, or off
Export
- Default Paper Size — A4, Letter, or Original
- Default Quality — High, Medium, or Compact
- File Naming — date-based, sequential, or custom prefix
Storage
- Cloud Service — connect and configure your preferred cloud provider
- Auto-upload — back up new scans automatically
- Storage Usage — view how much local space your scans occupy
Appearance
- Theme Mode — Light, Dark, or System
- Theme Variant — Vivid or Chic
Tips & Tricks
For the sharpest scans, ensure good lighting and hold the device steady. Natural daylight works best — avoid harsh shadows crossing the document.
Use Enhanced Text filter for faded receipts or old documents. It boosts contrast specifically to make text more readable.
When scanning multi-page documents, keep the camera angle consistent across pages. This produces a more uniform PDF.
Toggle Auto-capture in Settings to speed up bulk scanning. The camera takes the shot as soon as it detects clean edges, no tap required.
Troubleshooting
| Issue | Solution |
|---|---|
| Edges not detected | Ensure the document contrasts with the background surface. Increase lighting if the area is dim. |
| Perspective correction looks wrong | Manually adjust the crop handles to match the document corners before confirming. |
| PDF is too large | Use the Compact quality setting in Export. Apply the Black & White filter to reduce file size further. |
| QR code not recognized | Hold the device closer to the code. Ensure the entire code is within the viewfinder. Clean the camera lens. |
| Cloud upload fails | Check your internet connection and cloud service credentials. Re-sign in from Settings if needed. |
| Scans appear blurry | Hold the device steady while capturing. Tap to focus on the document if auto-focus isn't locking correctly. |
| Camera flash washes out the scan | Disable flash and use ambient lighting instead. Flash creates glare on glossy paper. |
Privacy
- QuickScanner does not require an account or sign-in for core scanning features.
- No usage data, analytics, or telemetry is collected.
- Scanned documents are stored locally on your device by default.
- Cloud storage upload is optional and user-initiated only.
- Camera access is used exclusively for document and QR code scanning.
- The app works fully offline. Internet is only needed for cloud storage features.