Merge PDF

Free PDF merger — combine PDFs in your browser, no upload required.

Runs locally in your browser. No data is sent to a server.

Drop PDF files here

PDF files — or press Enter / click to browse

Free — no account required
No file upload
Runs in your browser
No file size limit

How to merge PDF files

Choose two or more PDF files from your device
Drag or use the ↑ ↓ buttons to set the order
Click Merge PDFs
Download the combined PDF — processing never leaves your browser

Frequently asked questions

Is this PDF merger free to use?: Yes, completely free. No account, no subscription and no file size limit. Just choose your PDFs, merge and download.
Are my PDF files uploaded to a server?: No. This tool runs entirely in your browser — your PDF files are never uploaded, transmitted or stored anywhere. All merging happens locally on your device, with no data sent to any server.
Can I change the order of PDFs before merging?: Yes. Drag files up or down in the list, or use the ↑ ↓ buttons next to each file. The merged document follows the order shown exactly.
Will merging reduce the quality of my PDFs?: No. Pages are copied as vector content — text, images and page dimensions are preserved without re-encoding or converting to images. Note that merging invalidates digital signatures, and interactive forms, bookmarks and attachments may not be fully preserved.
Can I merge password-protected PDFs?: Not currently. Encrypted PDFs cannot be merged. Remove the password from your PDF first (using your PDF reader or the original application), then merge it here.

About Merge PDF

Free online PDF merger that runs entirely in your browser. Upload two or more PDF files, drag-and-drop or use the arrow buttons to set the order, then click Merge and download the combined document. No file upload, no sign-up, no account and no file size limit. Your PDFs never leave your device — all processing happens locally using your browser's built-in capabilities. Page text, images and dimensions are preserved without re-encoding or converting to images. Password-protected PDFs are not supported; remove the password first. Note that merging invalidates digital signatures, and interactive forms, bookmarks and attachments may not be fully preserved.

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