# Merge PDF files — in your browser, no upload

> Combine multiple PDFs into one file right in your browser. Reorder pages, keep original quality, and never upload — your documents stay on your device.

Add two or more PDFs, arrange them in the order you want, and download a single combined file. The whole merge runs in this browser tab, so nothing is sent to a server.

Merging is the most common PDF task: assembling a contract with its appendices, combining scanned receipts, or joining chapters into one document. This tool does it without the upload-and-wait step that most sites require.

You can reorder files before merging, and combine any mix of single-page and multi-page PDFs. Because the pages are copied rather than re-rendered, the output keeps the original text, fonts, and image fidelity of each source file.

If you need to rearrange or delete individual pages rather than whole files, use Organize instead. To shrink the combined result, run it through Compress afterward. And if the merged document is sensitive, you can add a password when you export.

## How to

1. **Add your PDFs.** Drop the PDF files you want to combine onto the tool, or click to browse and select several at once.
2. **Set the order.** Drag the files into the sequence you want them to appear in the final document.
3. **Merge.** Run the merge — the files are stitched together locally into one PDF.
4. **Download.** Save the combined PDF straight to your device. Nothing was uploaded at any point.

## FAQ

### Can I merge PDFs offline?

Once the page has loaded, merging works without a network connection — the code runs entirely in your browser, so you can disconnect and still combine files.

### Is there a file size limit?

There is no server-imposed limit. The practical ceiling is your device's memory, since the PDFs are held and combined in the browser tab.

### Does merging preserve bookmarks and quality?

Page content is copied without re-compression, so text and image quality are unchanged. Outlines/bookmarks from the source files may not always carry over.

### How do I merge password-protected PDFs?

Unlock the file first with the Unlock tool (using the password you own), then merge the unlocked copy.


## Related tools

- [Split](https://www.safepaper.app/docs/split)
- [Organize](https://www.safepaper.app/docs/organize)
- [Compress](https://www.safepaper.app/docs/compress)
- [Sign](https://www.safepaper.app/docs/sign-pdf)

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Canonical HTML: https://www.safepaper.app/docs/merge
Markdown: https://www.safepaper.app/docs/merge.md

There is no upload endpoint — your files are processed in this browser tab. Open your network tab and check.