Is the PDF merger free?

Yes — completely free with no signup, no watermark and no email required.

Are my PDFs uploaded?

No. The merge happens locally in your browser using pdf-lib. Files never leave your device.

Can I reorder the files before merging?

Yes — drag the rows on desktop or use the Move Up and Move Down buttons on any device, including phones and keyboards.

Is there a file size limit?

There is no paid file quota, but large documents are limited by your browser and available device memory. Try smaller batches if merging fails.

Are bookmarks and form fields kept?

Page appearance is generally preserved, but document-level bookmarks and some interactive form fields may not survive merging. Check links, signatures and forms in the downloaded file before relying on them.

Merge PDF Files

Merge multiple PDFs into one online for free. Drag, reorder and combine PDFs in your browser — no upload, no signup.

Free online toolReview your output

Click or drag & drop PDFs

PDF files — drop multiple at once

Files are processed entirely on your device. Use the ↑ and ↓ buttons to reorder on phones, tablets or with a keyboard.

How to use

1Drop two or more PDFs into the upload zone (or click to browse).
2Drag the rows up or down to set the order pages will appear in.
3Click Merge PDFs, then Download the combined file.

Using this tool responsibly

Check the instructions and review the output of Merge PDF Files before using it. Capabilities, input handling and accuracy depend on the individual tool: some operate locally in your browser, while others may use external data or services. Do not assume that every tool verifies the facts in its inputs or preserves all features of an edited file. For financial, medical, legal or tax decisions, confirm important results with an appropriately qualified professional. Read our methodology and privacy policy.

How to use

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Using this tool responsibly