Merge PDF

Join two or more PDFs into one file, in the order you choose. Free on WholeFiles, with no sign-up, no watermark and no daily limit.

Runs on your device. Nothing is uploaded.Last reviewed 22 September 2026

Drop files here

Choose files

Nothing is uploaded. Everything happens on this device.

Before you start. Comfortable up to about 100 MB in total on a computer, or 50 MB on a phone. There is no limit on the number of files.

Step by step

Drop your files onto the page, or press Choose.
Check the options that appear under the file list.
Press the green button and save the result. Nothing is uploaded at any point.

How it works

Each file is read into memory, the pages are copied into a single new document in the order shown, and the result is handed straight back to you. The work happens on your own processor, which is why nothing is uploaded and why there is no daily limit to enforce.

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Questions

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

No. Add as many as you like. The only real limit is the memory in your device, which on a computer is usually around 100 MB of combined file size.

Are my files uploaded to a server?

No. The merging happens inside your browser tab. Your files never travel across the internet, which is why this is safe for contracts, medical records and anything confidential.

Do I need an account?

No. There is no sign-up, no email, and no free trial that expires.

Will the quality change?

No. Pages are copied exactly as they are. Text stays selectable and images keep their original resolution.

Can I change the order of the files?

Yes. Drag any file up or down in the list before merging.

Does it work on a phone?

Yes, though phones have less memory. Keep the total under about 50 MB on mobile.

Merge PDF

Questions

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