PurePaper - Minimalist Scanner

PurePaper is a high-end document scanning tool for people who value aesthetics and efficiency. A tool should stay out of the way—it shouldn’t track you, require a subscription, or upload your private documents to someone else’s server.

[CORE FEATURES]
• The “Flatbed Look”: Adaptive shadow removal clears uneven lighting and restores a clean white background.
• Precision warping: System document edge detection and perspective correction straighten skewed photos into rectangular pages.
• Text sharpening: Boosts contrast for handwriting, stamps, and print.
• Four core modes: Magic Color, Flatbed Look, B&W Document, and Original Photo.
• On-device OCR & full-text search: Chinese (Simplified/Traditional), English, Japanese, German; search titles and page content from Home.
• Searchable PDF: Optional invisible text layer. Enabled by default for PDF export; disable in Export for image-only PDFs.
• Sign, annotate & redact: PencilKit markup; redact sensitive text automatically or by hand.
• Tags & merge: Colored tags; merge multiple documents into one multi-page file.
• App Lock: On by default. Face ID, Touch ID, or device passcode is required on launch and when returning from the background. To turn it off: Settings → App Lock → disable “Require Face ID / Passcode”.

[OPTIONAL — OFF BY DEFAULT]
• Backup Destination: Settings → Backup Destination. Default is Local Only. Switch to iCloud Drive or your own WebDAV server to back up exports.

[WHY PUREPAPER?]
• Ultra-minimal native UI—no clutter, just scanning.
• Anti-subscription: one-time purchase, lifetime ownership.
• Native Swift stack for fast launch and processing.