Are my files uploaded when I merge PDFs?

No. Merging runs entirely in your browser. Your PDFs never leave your device and are not sent to our servers.

How many PDFs can I combine at once?

Up to 20 files in a single merge, with a combined cap of 5,000 pages.

No. There is no watermark and no account is required.

Tools / Combine

Join up to 20 PDFs into a single document, in the order you choose. Drag to reorder after selecting.

Processed in your browser. File never leaves your device.

Drop PDFs here

application/pdf, up to 25 MB each

or click to browse

Merge combines several PDFs into a single file. Add your documents, drag them into the order you want, and download one combined PDF.

Are my files uploaded when I merge PDFs?: No. Merging runs entirely in your browser. Your PDFs never leave your device and are not sent to our servers.
How many PDFs can I combine at once?: Up to 20 files in a single merge, with a combined cap of 5,000 pages.
Is there a watermark or sign-up?: No. There is no watermark and no account is required.