How to Scan a Document to PDF on Mobile
Whether you need to submit a signed contract, archive a medical bill, or digitize a paper receipt for tax season, converting paper to PDF on your phone takes only seconds.
1. Position Your Document on a Flat Surface
Place your paper sheet, contract, or receipt onto a contrasting background (for example, a dark wooden desk or tablecloth). Ensure even lighting to reduce harsh hand and phone shadows.
2. Let Machine Learning Detect Edges Automatically
Open PDF Scanner and tap Scan. The native camera scanner automatically locates the 4 corners of your page and flattens perspective distortions in real time.
3. Apply Contrast & Clarity Filters
Depending on the type of document:
- Grayscale Filter: Best for typed text, contracts, and printed receipts to maximize black-and-white legibility.
- Color Filter: Ideal for official stamps, colored logos, diagrams, and photos.
- Original Mode: Preserves exact paper texture and original lighting.
4. Render & Share the A4 PDF
Tap Done. PDF Scanner compiles an ISO-standard A4 PDF file on device. Tap Share to send the pristine document via WhatsApp, Gmail, AirDrop, or save it to your local files archive.
What is the Difference Between Scanning and Photographing a Document?
A standard camera photo preserves angled distortions, desk backgrounds, uneven shadows, and produces a large JPEG file that is difficult to print or read. A dedicated PDF scanner app crops out borders, enhances contrast, flattens the page geometry, and packages it into a standardized multi-page PDF formatted for international printers.
Scan Your First Document in Seconds
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