klzth – Simple, Secure PDF Merging Online

klzth is a fast and easy-to-use online PDF merging tool that lets you combine multiple PDF files directly in your browser. No account, no registration, and no file uploads required. Your documents stay on your device while you merge files, helping protect your privacy. With an intuitive interface, flexible file ordering, and optional A4 page resizing, klzth（https://www.klzth.com/ ） makes combining PDFs simple and convenient. Enjoy free monthly merges and affordable one-time licenses, with no subscription fees or watermarks.