Merge PDF Online Free — Combine PDF Files
Combine two or more PDF files into one document in seconds. Free, no sign-up, and your files never leave your device.
✦ Free forever • No sign-up • No upload • No watermark
Merge PDF — Free, No Sign-Up
Add 2 or more PDF files. Drag them into order with the arrows, then press Merge.
How to use Merge PDF
Add your PDF files
Click the box above or drag PDF files onto it. Add as many as you like — reports, chapters, forms, scans.
Arrange the order
Use the up and down arrows to put the files in the order you want them in the final document. Remove any file with the ✕ button.
Merge and download
Press “Merge PDFs”. Your combined PDF downloads instantly — one file, all pages in your order.
Example: Example: merge report.pdf (4 pages) and appendix.pdf (6 pages) and you get one merged.pdf with 10 pages, in the order you chose.
About Merge PDF
Merging PDFs is one of the most common PDF jobs: combining chapters into one book, joining a cover letter to a CV, or putting several scanned pages into a single file. PDFTools merges your PDFs right in your browser. There is no upload, no queue and no waiting room — the files are combined on your own device, so a merge takes seconds even on a slow connection, and your documents stay private.
The order is entirely yours: add the files, move them up or down, remove the ones you do not need, and merge. The result keeps every page of every file, in the order you set. There is no page limit and no watermark on the merged file. Because everything runs locally, the tool works the same on a phone, a tablet or a computer — and it is free, with no account and no sign-up.
Frequently asked questions
How do I merge PDF files online?
Add two or more PDF files to the box above, arrange them in the order you want with the arrows, and press “Merge PDFs”. The combined file downloads immediately.
Is merging PDF files free?
Yes. Merging PDFs on PDFTools is 100% free. There is no paid plan, no page limit and no watermark.
Do my PDF files get uploaded?
No. The merge happens entirely in your browser using pdf-lib. Your files never leave your device, and nothing is stored on any server.
How many PDFs can I merge at once?
There is no fixed limit. Very large files (hundreds of megabytes) may be slow on older phones, but ordinary documents merge in seconds.
Will the merged PDF keep the original quality?
Yes. Merging copies the pages exactly as they are — text, images and layout are unchanged. Nothing is re-compressed.
Can I merge a password-protected PDF?
No. Password-protected (encrypted) PDFs cannot be opened by this tool. Remove the password first — the tool never asks for your password.
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