Merge PDF Files Online – Combine Multiple PDFs into One
PDFmuto merges multiple PDF files into a single document entirely in your browser. Nothing is uploaded to a server.
- No file limits
- No registration
- Free forever
- PDFs never leave your browser
Drop PDFs here
Supported format: PDF
How to Merge PDF Files
Upload Your PDFs
Add the PDF files you want to combine by dropping them on the page or browsing your device. You can add as many as you need.
Arrange and Reorder Pages
Use the arrows to put the files in the order you want. Each file becomes a block of pages in the merged document, keeping its original layout.
Download the Merged PDF
Click Merge, wait a moment, then download your combined document. It is saved as a new file, so your originals are never touched.
Why Merge PDFs?
Combining PDFs keeps related documents in one file, which makes them easier to email, print, and archive. Instead of juggling ten attachments, you send one document.
Because everything runs in your browser, there is no upload queue and no file-size cap imposed by a server. Large batches of documents merge just as fast as small ones.
Merge PDF Tool Features
| Files at once | Unlimited |
|---|---|
| Output | Single merged PDF |
| File size limit | None, limited only by your browser |
| Registration | Not required |
| Upload | None, processed on your device |
Your PDFs never leave your browser
All processing happens locally on your device. Nothing is uploaded to a server, stored, or tracked.
Frequently asked questions
How many PDFs can I merge at once?
As many as your browser can hold in memory. There is no artificial limit — merge two files or two hundred.
Is the merged PDF smaller or larger than the originals?
The merged file roughly equals the sum of the source files. No recompression is applied, so the pages keep their original quality.
Can I reorder the files before merging?
Yes. After adding files you can move each one up or down in the list, or reverse the whole order, before you hit Merge.
Learn more about PDFs
Read practical guides for working with PDFs without uploading your files. Browse all guides →