Is my file uploaded to a server?

No. This tool runs entirely in your browser via WebAssembly — your file never leaves your device. You can verify this in your browser's DevTools Network tab.

What is the difference between sequential and interleaved?

Sequential groups all copies of each page together (1,1,2,2). Interleaved repeats the full sequence (1,2,1,2). Use sequential to print duplicate copies of individual pages; interleaved to print multiple complete copies of a document.

How many times can I repeat pages?

Up to 50 times for anonymous use, 200 times for free signed-in accounts.

Repeat Pages

Duplicate selected pages any number of times — nothing is uploaded.

Local processing — your files never leave your browser