Merge PDF Online — Combine PDFs Free, No Upload
Combine several PDFs into a single file, right in your browser. Files are merged in the order you add them — nothing is uploaded.
or drag and drop here — up to 20 files at once
Your files are processed on your device and are never uploaded.
How to merge PDF files online
- 1
Add your PDFs
Drag and drop up to 20 PDF files onto the box above, or tap to pick them. They merge in the order you add them.
- 2
Merge
Press Merge PDFs. Every page of every file is copied into one document — text and vectors are preserved, not re-rendered.
- 3
Download
Download the single combined PDF. Nothing was uploaded — the merge happened on your device.
Why use this tool
Files never leave your device
Everything runs inside your browser. Nothing is uploaded, stored or seen by anyone but you.
No signup, no watermark
No account, no email, no branding stamped on your output. Free with no daily limit.
Instant — no upload wait
Because there is no round trip to a server, results appear as fast as your device can work.
Works on your phone
Built mobile-first, so you can do this from a phone browser without installing anything.
Merge without uploading sensitive documents
Combining PDFs usually means handing contracts, invoices or IDs to a website. This tool never does that — the whole merge happens in your browser, so confidential documents stay on your machine. You can even disconnect from the internet after the page loads and it still works.
Because pages are copied rather than re-printed, the result keeps selectable text and sharp vectors, which matters when the merged file needs to stay searchable or be signed later.
Frequently asked questions
- In what order are the PDFs combined?
- In the order you add them, top to bottom in the list. Add the files in the sequence you want the final document to read.
- Are my PDFs uploaded to a server?
- No. The merge runs entirely inside your browser using a Web Worker. Your documents are read into memory on your own device and never transmitted anywhere — there is no server to receive them.
- Does merging reduce quality or lose text?
- No. Pages are copied exactly as they are, so fonts, text layers and vector graphics are preserved. The merged file is as crisp as the originals and its text stays selectable.
- Is there a limit on the number or size of files?
- You can merge up to 20 files per batch with no page limit. Because everything runs on your device, the practical ceiling is your device's memory.
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