klzth is a browser-based PDF merger designed for simple, private document handling.
Combine multiple PDF files, change their order, sort them by filename, and optionally adjust different page sizes to A4. The tool works directly in your browser, allowing you to merge documents without sending them to a remote server.
PDF pages are combined without unnecessary re-rendering, helping preserve selectable text and image quality. There is no software to install, no account required, and no watermark on the final document.
You can make 3 merges per month for free. When you need more, choose a one-time package — 30 merges for $5.50 or 100 merges for $9.90 — with no recurring subscription.
klzth keeps PDF merging straightforward, private, and pay-as-you-go.