Merge PDF β Combine PDF Files Online, Free & Private
Combine several PDF files into one in the order you choose, then download. Files are merged right in your browser and never uploaded.
π Runs entirely in your browser. Your input and output are never sent to a server or stored β fully private.
π Files are merged inside your browser and never uploaded.
About this tool
This PDF merger combines several PDF files into a single document, right in your browser. Add your files, drag them into the order you want, and download one merged PDF β the page content, text and vectors are preserved exactly. Unlike most online merge tools, nothing is uploaded: every byte stays on your own device, which makes it safe for contracts, invoices and other sensitive documents. There is no file-size limit beyond your device's memory, and no sign-up.
Frequently asked questions
Are my PDF files uploaded anywhere?
No. The whole merge happens locally in your browser using JavaScript, so your files never leave your device and are never sent to or stored on a server. You can even disconnect from the internet after the page loads and it still works. That makes it genuinely safe for confidential paperwork.
Can I choose the order of the files?
Yes. Files merge in the order shown in the list, and you can rearrange or remove any of them before merging. Add as many PDFs as you like; the pages are copied in sequence into one new document, so the result reads top-to-bottom in exactly the order you set.
Does merging reduce the quality?
No. Merging copies each page as-is into the new file, so text stays selectable, fonts and images are untouched, and vector graphics remain sharp. It is not a re-render or a compression step β the merged PDF is essentially your originals placed back-to-back, with no loss of fidelity.