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Document scanner app: scan to PDF, OCR text search, remove shadows, offline
CleanScan is a document scanner app that turns your phone camera into a high-quality PDF scanner. It automatically detects edges, removes shadows, and produces clean, sharp PDFs — the kind that look like they came from a flatbed scanner, even when you photographed the page under uneven light. Everything runs on your device. No account, no sign-up, no cloud upload. FIND ANY OLD RECEIPT IN SECONDS Every scan is searchable. Need to find what you spent on a specific day — six months ago, a year ago? Search by date, amount, or the shop's name, and the matching invoice comes straight back. No more digging through a shoebox of receipts. SCAN ANYTHING - Receipts and invoices for expense claims - Contracts, forms, and signed agreements - Textbook pages, lecture notes, handouts - ID cards, certificates, and letters - Whiteboards and printed handouts SMART DOCUMENT SCANNING Automatic edge detection, cropping, and deskew give you straight, clean pages every time. Shadow removal handles uneven lighting. Choose Color, Grayscale, or Black & White output depending on what you are scanning. ON-DEVICE OCR IN FOUR LANGUAGES CleanScan recognises English, Chinese, Japanese, and Korean text directly on your phone. Nothing is sent to a server. The OCR runs offline, so it works on a plane, in a basement, or anywhere with no signal. SEARCHABLE PDF EXPORT Exported PDFs carry an invisible text layer, so you can search them in any PDF reader — on your phone, on your computer, or after you email them to someone else. FULL-TEXT SEARCH Find any scan by what is written inside it, not just by its filename. Type a word, an amount, or a shop name and CleanScan finds the page. PDF TOOLS - View, reorder, rotate, rename, and delete pages - Fill interactive PDF form fields right on your phone - Annotate: draw, highlight, add text, and sign by hand - Password protection with AES-128 encryption - Translate scanned text, or have it read aloud - Scan barcodes and QR codes PRIVACY BY DESIGN Your documents stay on your device. Scanning, image enhancement, and text recognition all run on-device — your files are never uploaded to any server. CleanScan does not ask you to create an account. WHO USES CLEANSCAN Field workers filing reports away from a desk. Students without a scanner at home. Admin staff handling paperwork. Freelancers scanning invoices to claim expenses. Anyone who needs a document scanner in their pocket. CleanScan is supported by a single banner ad at the bottom of the screen. There are no full-screen ads, no video ads, and no pop-ups.