Developer Tools

Kavrylo

Share your ID. Keep your identity.

Kavrylo is a private, browser-based tool for watermarking sensitive documents before you send them. It helps you mark passports, ID cards, driver’s licenses, PDFs, and images with clear text like the intended use and date, so the file is tied to a specific request or recipient. Everything runs locally in your browser, so your file never leaves your device and nothing is uploaded to a server. You can customize the watermark, choose the layout, and export the result as a PDF or PNG. It is built for simple sharing, with no account, no uploads, and no cost.