Rekto DigitalFree toolsMerge PDF
Merge PDF files
Updated October 20, 2026 · Free, no sign-up, no upload
Combine several PDFs into one file, in the order you choose. It all happens in your browser: your files never leave your device.
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How to use it
- Choose your PDFs. Pick two or more files, or drop them on the box. You can add more at any time.
- Put them in order. Use the arrows to move a file up or down, and × to remove it. The pages keep their order inside each file.
- Merge. The combined PDF downloads straight away, named after the first file.
Why it doesn't upload your files
Most online PDF tools send your document to their server, process it there and send it back. This one does the work in your browser with open-source libraries (pdf-lib and Mozilla's PDF.js), so contracts, IDs and bank letters stay on your device.
Questions
How do I merge PDF files for free?
Choose the PDFs on this page, put them in order and press Merge PDFs. It is free, with no sign-up, no watermark and no limit on the number of files beyond what your device can handle.
Are my files uploaded?
No. The tool runs in your browser on your own device. Your PDF is never sent to our server or anyone else's, and it is gone when you close the page.
Can I merge password-protected PDFs?
Not here. Unlock the PDF with its password first, then merge it. Kind PDF on Android can unlock a PDF you know the password for.
Can I merge PDFs on my phone?
Yes, this page works in a phone browser. On Android, the free Kind PDF app also combines PDFs and images offline, and lets you reorder and remove pages.
More free PDF tools
On Android? Do it offline, and moreKind PDF is our free PDF app for Android: PDF to Word, combine, split, compress, sign and scan, all on your phone with no watermark and no account.