FREE TOOL
Merge PDF
Add your PDFs, arrange them in the order you want and download a single merged file.
Merged on your device. Files are not uploaded.
- Added files appear here. Use the arrows to change the order.
WHAT IT DOES
About this tool
Merge several PDF files into one, reordering them before you merge. Works in your browser with no uploads, no watermark and no sign-up.
Everything runs right in your browser: your text and files are never uploaded or stored.
QUESTIONS
Frequently asked questions
Are my PDFs uploaded to a server?
No. The files are merged in your browser by the open-source pdf-lib library, so contracts and invoices never leave your device.
Is there a size limit?
There's no fixed limit, but everything happens in your device's memory. Merging a few hundred megabytes works fine on a computer; on a phone, stick to smaller files.
Can I merge password-protected PDFs?
Not reliably. Remove the password first in the app that created the file (or via Print → Save as PDF), then merge.
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