Getting Started & Document Scanning
Follow these instructions to capture crisp, professional scans of agreements, invoices, certificates, and handwritten notes using NVIN Scanner.
Standard Scanning Workflow
Launch NVIN Scanner & Grant Camera Access
Open the app and grant the camera permission when prompted. The camera stream is utilized purely on-device for live document framing.
Position Paperwork on a High-Contrast Surface
Place your paper document on a dark table or background with clear lighting to help distinguish the four page corners clearly.
Frame & Capture the Document
Align your phone parallel to the paper to prevent extreme perspective distortion and tap the central shutter button.
Adjust Four-Corner Crop Boundary
Drag the corner handles on the preview screen to crop out the background table and align the rectangular bounds of the page.
Apply a Legibility Filter
Choose between 'Black & White' (ideal for text documents and invoices), 'Grayscale', or 'Original Color' depending on your document type.
Add More Pages or Export PDF
Tap 'Add Page' to scan additional sheets, or tap 'Save PDF' to compile all captured pages into a single organized document.
- Avoid Shadows: Stand so that light shines directly onto the paper without casting your phone's shadow across the text.
- Contrasting Background: White paper on a dark desk produces sharper automatic edge detection compared to white paper on a light sheet.
- Hold Steady: Allow auto-focus to lock onto the fine text before pressing the capture button.
Was this documentation guide helpful?
Your feedback helps our engineering team refine application documentation.