ISS calculator vs PDF Compressor

The Ichthyosis Scoring System (ISS) is a comprehensive and user-friendly instrument for assessing the extent and clinical severity of ichthyosis across the entire body. It is designed for use in clinical trials, research and clinical practice to assess severity and response to treatments. We make it easy for researchers and physicians to calculate a severity score for adults and children with ichthyosis. The ISS was conceived and developed by Keith Choate, Amy Paller and Mary Sun in response to the U.S. Food and Drug Administration's recommendation for an ichthyosis severity assessment tool that can score the entire body surface, with scoring categories tailored to FDA guidelines. Disclaimer: Please seek a dermatologist’s advice before making any medical decisions based on the calculated severity score.

PDF Compressor & Photo Optimizer — Everything on your iPhone, nothing in the cloud. Shrink PDFs and photos by up to 95% while you blink eyes. No internet required. No uploads. Your files never leave your device. --------------------------------- WHAT YOU CAN DO --------------------------------- COMPRESS PDF Reduce PDF file size with adjustable quality levels. Perfect for email attachments, web uploads, and freeing up storage. COMPRESS PHOTOS Shrink JPEG, PNG and HEIC images while keeping them sharp and shareable. SELECT & SPLIT PAGES Pick only the pages you need from any PDF using a visual thumbnail grid. MERGE & JOIN PDFs Combine multiple PDFs or images into a single document in seconds. PASSWORD LOCK & UNLOCK Protect sensitive PDFs with a password or remove password from encrypted files — all on-device, no cloud key storage. RECENT FILES Instantly access and re-share your recently compressed or edited files. ADD SIGNATURE Append signature to your PDFs and share them instantly ----------------------------------------- WHY CHOOSE PDF COMPRESSOR ----------------------------------------- 100% on-device - your documents never leave your iPhone or iPad No account, no subscription required to get started Works offline - compress on a plane, in a meeting, anywhere Supports Files app - open and save directly from iCloud, Dropbox and more iPad & Mac (Apple Silicon) ready Perfect for students, professionals, lawyers, and anyone who handles PDFs regularly.