Zero Upload · 100% Private

Merge PDF Files Online Free

Combine multiple PDFs into one document. No upload, no signup, 100% private. Your files never leave your device.

Drag & drop PDF files here

or click to browse · up to 20 files · no size limit

0 files selected
100% Private: Files merge in your browser. We never see or store your documents.

How to Merge PDF Files in 4 Simple Steps

1

Upload PDFs

Click "Choose Files" and select up to 20 PDF files. Drag & drop also works.

2

Arrange Order

Drag files to reorder them. The merged PDF will follow this sequence.

3

Click Merge

Click "Merge PDF" and wait 2-5 seconds while we combine your files locally.

4

Download

Your merged PDF downloads automatically. No upload, no traces left behind.

Frequently Asked Questions About Merging PDFs

Is this PDF merger really free?

Yes, 100% free forever. No hidden costs, no premium tiers, no watermarks. We support the service through optional donations and non-intrusive ads.

Do you store my uploaded PDFs?

No. Your files never leave your device. All processing happens in your browser. Once you close the tab, every trace disappears.

Is there a file size limit?

No limit! The only constraint is your browser's memory (typically 1-2GB). Larger files may take longer but will work.

Can I merge password-protected PDFs?

Yes, if you know the password. Our tool will prompt you to enter it before merging.

How many files can I merge at once?

Up to 20 files at once. If you need more, you can merge in batches.

Will the quality reduce?

No. We preserve original quality. Pages are copied exactly as they appear in source files.

Does it work on mobile?

Yes! Our tool works perfectly on smartphones and tablets. All processing happens locally.

Do I need to create an account?

No signup, no registration, no email required. Just upload, merge, download.

Why choose PDF Tool Mate? Unlike other "free" PDF tools that upload your files to unknown servers, we process everything locally. Your tax returns, contracts, and personal documents stay private.
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