Drop in your PDFs, drag them into order, and download one combined file — merged on your device with no upload, no watermark, and no page limits.
The usual reason people merge PDFs is a form with a single file field: a visa portal that wants passport scan, bank statement, and invitation letter as one document; an application system that takes one attachment; a client who asked for "the contract with all annexes". This tool closes that gap — add every PDF at once, drag them into the right order, and download a single combined file with the pages exactly where you placed them.
The combined file is assembled with pdf-lib, a JavaScript PDF library running in a background thread of your browser. Pages are copied from each source document into the new one as-is — nothing is rendered to images or recompressed. Selectable text stays selectable, links inside pages keep working, and a 300-DPI scan comes out at 300 DPI. That also makes merging fast: even large documents combine in seconds, because the work is copying, not converting.
Think about what typically gets merged: identity documents, contracts, statements, medical records. Sending that bundle through a stranger's server just to staple it together is a poor trade. Here there is no server involved — the files are read, combined, and written back out by code running on your own machine, and the page would finish the job even if you disconnected from the internet after it loaded. There is no account, no daily merge quota, and no watermark stamped on the result.
One requirement: password-protected PDFs need their password removed first. The tool tells you which file is locked, and the site's Unlock PDF tool handles it in the same private way.
No. The combined PDF is assembled by code running in your browser — no part of any file crosses the network, and closing the tab clears everything from memory.
No. Pages are copied into the new file without re-rendering or recompression, so text stays selectable and scans keep their original resolution.
There is no fixed limit — the practical ceiling is your device's memory. Dozens of typical documents merge without trouble; very large scanned files take longer.
Yes. Files appear in a list after you add them; drag-free up/down controls let you reorder before merging, and the output follows that order exactly.
Encrypted PDFs can't be copied from until they're decrypted. Remove the password with the Unlock PDF tool on this site — also fully local — then merge.