How many files can I merge?

As many as your device's memory allows; a handful of typical documents merges in seconds.

Does merging reduce quality?

No. Pages are copied rather than re-rendered.

Files are merged in the order listed, so select or remove files until the order is right.

Join two or more PDF files into a single document, keeping every page exactly as it was.

1Drag several PDFs onto the upload area, or tap to choose them from your device.
2Check the order in the file list, then press Merge PDFs.
3Download the combined document.

Merging copies the original page objects into a new document, so text stays selectable, links keep working and quality is untouched.

It is the usual fix for a form that only accepts one attachment, or for assembling chapters, invoices and scans into a single file.

Safe for sensitive files
Documents are never uploaded to a server, so contracts and invoices stay with you.
Free and unlimited
No account, no sign-up and no daily cap — use it as often as you need.
Works on your phone
The layout, buttons and inputs are built mobile-first and are fully keyboard accessible.