Merge PDF Files

Combine PDFs without uploading anything

PDFToolkit's Merge PDF tool lets you combine two or more PDF files into a single document in seconds. Add your files, arrange them in the order you want, and merge — all of it happens locally in your browser using JavaScript, so your documents are never uploaded to a server.

This makes it a solid choice for merging contracts, reports, scanned pages, invoices, or any other PDF content you'd rather not send over the internet. There's no sign-up, no watermark, and no artificial limit on how many files or pages you can combine.

How merging works

Drop in your PDF files, confirm the order you want them combined in, then click merge. Your browser builds the combined PDF in memory and offers it straight back to you as a download — nothing is ever written to a remote server or stored anywhere outside your device.