eSign vs ComPhysics Green UV

eSign turns your iPhone & iPad into a complete e-signature tool — create a signature, sign any PDF, and share it in seconds. No printer, no scanner, no paper. • Sign PDF documents anywhere, anytime • Create a signature 3 ways: draw, scan from paper, or import a photo • Fill & sign forms, then flatten to a secure, share-ready PDF • Signature Library with iCloud sync across all your devices • 100% on-device processing — your documents stay private CREATE YOUR PERFECT SIGNATURE Your signature is personal, so eSign gives you full control over how you make it: • Draw with precision — sign directly on screen with your finger or Apple Pencil for a smooth, natural result. • Scan from paper — point your camera at a pen-and-paper signature and our image processing removes the background automatically, leaving a crisp, transparent signature. • Import from your library — already have a digital signature? Import it from Photos and reuse it instantly. eSIGN DOCUMENTS IN SECONDS 1. Import your PDF — open any document from Files, iCloud Drive, or any connected cloud service. 2. Place your signature — tap to add it, then move, resize, and rotate it to fit any form field perfectly. 3. Save & share — export a new, secure PDF and send it via email, AirDrop, Messages, or back to the cloud. YOUR SIGNATURE & DOCUMENT HUB • Signature Library — store every signature you create in one secure place and manage multiple signatures for personal or professional use. With iCloud Sync they're always available across your iOS devices. • Document Management — keep all your signed documents organized; view, search, and sort to find what you need fast. Download eSign today and stop printing, scanning, and mailing paper. Create your signature, sign your documents, and go fully digital. Privacy Policy: https://sites.google.com/view/esign-privacy-policy/home Terms of Use: https://sites.google.com/view/esign-terms-of-service/home

IMPORTANT: This app requires the ComPhysics CP-UV01 UV Indicator and CP-UV01-SA smartphone accessory. Without the dedicated optical hardware, the displayed values are not valid UV measurements. ComPhysics Green UV uses the iPhone camera to analyze the green visible emission produced by the CP-UV01 optical system. It provides a relative UV signal called CRU (ComPhysics Relative UV) and helps you compare conditions, save results, and observe changes over time. KEY FEATURES • Real-time CRU display • Movable circular Region of Interest • Reference-versus-sample comparison • Relative effective UV transmittance and blocking display • Time recording with graph • Photo and reading capture • Sample names and notes • Local export of CSV, JSON, JPEG, and PDF files • Optional location and device-orientation data for records • Korean, English, Japanese, and Simplified Chinese PRIVACY Camera frames and measurement data are processed on the device. The app does not include advertising or third-party analytics SDKs and does not automatically upload measurement data to ComPhysics. Files leave the app only when you choose to share or export them. MEASUREMENT NOTICE ComPhysics Green UV is a relative comparison tool. It is not an absolute UV irradiance meter, certified spectroradiometer, medical device, safety-certification system, or official spectral transmittance instrument. Results depend on the iPhone model, selected camera, settings, accessory alignment, ambient light, distance, angle, source spectrum, and measurement geometry. A low reading does not prove that a UV source is safe.