Combine multiple PDFs into one file, in the order you choose. Runs entirely in your browser.
Your files never leave your device. Nothing is uploaded to a server.
Report a problemYou can reorder the files themselves (which sets the order they're combined in), but reordering individual pages within a single PDF isn't supported yet — use our PDF split tool first if you need to rearrange pages within one file.
No — encrypted PDFs are rejected with a clear error. Remove the password in another PDF reader first, then merge.
No fixed limit, but very large files or a large number of files may be slow depending on your device's memory, since merging happens locally in your browser.
No — pages are copied as-is, so text, images, and formatting stay identical to the originals.