How It Works

Step 1 — Select your file. Drag and drop or browse. Your browser reads the file; its signature and type are validated locally.

Step 2 — Adjust options. Each tool shows only the settings that genuinely affect its output — page ranges, rotations, watermark style, compression quality and more.

Step 3 — Process locally. pdf-lib handles structural changes and PDF.js renders pages where images or previews are needed. Progress and errors are shown honestly.

Step 4 — Download. The result is generated as a file in your browser and downloaded directly. Toolzio does not keep a copy.