PDF Merge
Combine multiple PDF files into one document, right in your browser.
How it works
Drop your PDF files onto the box above or click to browse. Put them in the order you want with the up and down controls, then press Merge PDFs. Every page of every file is copied into a single new document, which you can download instantly. The whole process happens locally in your browser, so nothing is uploaded and nothing is stored.
Examples
page-1.pdf + page-2.pdf + signature.pdf → merged.pdfcover.pdf + essay.pdf + references.pdf → merged.pdfFrequently asked questions
Are my PDF files uploaded to a server?
No. The merge runs entirely in your browser using WebAssembly-free JavaScript — your files never leave your device.
How many PDFs can I merge at once?
There is no fixed limit. In practice, merging dozens of files works fine; very large files (over 100 MB each) are skipped to keep the browser responsive.
Can I change the order of the pages?
Yes. Each file in the list has up and down controls, and the merged PDF follows the order shown.
Does it work with password-protected PDFs?
Files with owner restrictions usually merge fine, but PDFs that need a password to open cannot be read and will show an error.
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