PDF tool

Merge PDF files online free

Combine multiple PDFs into one clean document in the order you choose.

Last updated:

Processing mode: Private Runs in your browser

  • Files are processed in your browser
Waiting for PDFs.

How to use it

How to use Merge PDF Files

  1. Upload two or more PDFs.
  2. Drag files into the order you want.
  3. Merge and download the combined PDF.

Good for

Common use cases

Useful for combining contracts, reports, receipts, forms, and multi-part downloads into one file.

Privacy

Runs in your browser

Files are processed by your browser. They never reach our servers.

Questions

Merge PDF Files: common questions

Can I rearrange PDFs before merging?

Yes. The queue lets you move files up or down before creating the final PDF.

Are files uploaded to a server?

The current merge workflow runs in your browser, so your PDFs never leave your device. This is the same reason the tool keeps working on flaky connections and is safe for confidential documents.

Is there a limit to how many PDFs I can merge?

For free, you can merge up to 10 PDFs at a time, with a combined size of up to 200 MB. A Day Pass or Project Pass raises that to 50 PDFs, with a combined size of up to 1 GB. Very large PDFs also depend on your device's memory, so compressing them first or splitting the job into two batches can help.

Are bookmarks and form fields preserved?

Page content is preserved as-is. Document-level metadata such as bookmarks, outlines, and form fields may be flattened in the merged output. Save your originals if you need to keep editable forms.

Will this tool stay free?

Yes. Everything this tool does is free. On some tools, a Day or Project Pass raises the file-size and batch limits if you need more.