# Merge PDF files

> Merge PDF files in your browser. Combine multiple PDFs into one document with no upload, no account, and no server processing.

Combine PDFs on your computer

A merge PDF tool should be boring in the best way: drop the files, set the order, and download one document. LoveThisPDF concatenates every PDF you add, from top to bottom, using pdf-lib in this browser. The pages are copied into a new file on your computer. We do not run a conversion server, so the packet never leaves the tab.

Use it when chapters, exhibits, or signed forms belong in a single handout. Reorder with the arrows if the first drop was messy. Unlock password-protected files on your machine first. This page cannot read them. The download is a copy; the originals stay on disk. Close the tab and the working files disappear from the app.

Free. There is no paid tier. No account. They stay on your computer. Nothing is uploaded.

## How to merge PDFs in your browser

1. Drop two or more PDFs onto the box, or browse from your computer.
2. Use the arrows to set merge order from top to bottom.
3. Click Merge PDFs. The join runs locally and is never uploaded.
4. Download the combined file. Your source PDFs are unchanged.

## Merge PDF without uploading

Most “merge PDF online free” sites take the file, process it on a server, and ask for an email. This page does the join in JavaScript. There is no queue, no watermark from us, and no account. If a merge fails, the file never sat on someone else’s disk.

Need to check two files side by side first? Use [Compare PDF](https://lovethispdf.com/tools/compare-pdf.md).

## Questions

### Can I merge PDF files without uploading them?

Yes. LoveThisPDF reads the PDFs in this tab and writes a new file on your device. Nothing is sent to a server to combine them.

### Is this merge PDF tool free? Do I need an account?

It is free to use in the browser. There is no sign-up and no watermark added by LoveThisPDF.

### How do I choose the order when I combine PDF files?

Files merge from top to bottom. Use the arrows on the list to move a PDF up or down before you merge.

### Will bookmarks and form fields survive a merge?

Pages are copied into a new document. Simple files merge cleanly. Some form fields, comments, or bookmarks may not carry over.

### Why won’t a password-protected PDF merge?

Encrypted files cannot be opened here. Unlock them on your computer, then drop the unlocked copies.

## Related tools

- [Compare PDF](https://lovethispdf.com/tools/compare-pdf.md): Check two packets side by side before you join them.
- [Split PDF](https://lovethispdf.com/tools/split-pdf.md): Pull the merged packet apart again into ranges or single pages.
- [Organize PDF](https://lovethispdf.com/tools/organize-pdf.md): Reorder or drop leftover pages after you join several files.
- [Compress PDF](https://lovethispdf.com/tools/compress-pdf.md): Shrink a bulky merged file before you email it.
- [Page numbers](https://lovethispdf.com/tools/page-numbers.md): Number the combined document so readers can cite a page.
- [Watermark PDF](https://lovethispdf.com/tools/watermark-pdf.md): Stamp DRAFT or a logo across the new packet.

## Tasks

- [Combine PDFs for email](https://lovethispdf.com/combine-pdfs-for-email.md): One file, built on your computer