Merge PDF
Free merge PDF tool. Combine multiple PDF files into a single document right in your browser — reorder them, then download. Your files never leave your device.
Merge PDF files privately, in your browser
This tool combines several PDFs into one document using pdf-lib, running entirely on your device. Your files are never uploaded — perfect for contracts, scans, or anything sensitive. Add your PDFs, drag them into the order you want with the arrows, and download the merged file.
Is it really private?
Yes. Everything happens in your browser tab. Nothing is sent to a server, so there are no upload limits and your documents stay confidential.
Will it keep the quality?
Merging copies the original pages exactly — text, images, and formatting are preserved at full quality. It works with standard, unencrypted PDFs.
Frequently asked questions
Are my PDF files uploaded anywhere?⌄
No. The merge happens entirely in your browser using a JavaScript PDF library, so your files never leave your device and there is no size limit from us.
Can I choose the order of the files?⌄
Yes. After adding your PDFs, use the up and down arrows to arrange them, and they will be merged in exactly that order.
Does merging reduce the quality?⌄
No. The original pages are copied as-is, so all text, images, and formatting are preserved at full quality.
Does it work with password-protected PDFs?⌄
Encrypted or password-protected PDFs need to be unlocked first. Standard, unprotected PDFs merge without any issue.
Have another question? Get in touch.
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