Merge PDF files
- Free
- Nothing uploaded
- No file limits
Combine several PDF files into one, in the order you choose. Free and private: the PDFs are merged in your browser and never uploaded.
How it works
- Choose two or more PDF files, or drop them on the box.
- Put them in the right order with the arrow buttons.
- Press Merge PDFs and download the combined file.
Frequently asked questions
Are my files uploaded?
No. Everything happens in your browser, on your own device. Your files never leave your computer or phone, which is also why there are no size limits or daily quotas.
Is there a limit on the number of files?
No fixed limit. Very large files can be slow on phones, because all the work happens on your device.
Does it work with password-protected PDFs?
Not yet. Open the PDF with its password in a PDF reader, save a copy without the password, then use that copy here.
Does merging change the quality?
No. Pages are copied exactly as they are, including text you can select and search.
More PDF tools
Runs locally with the open-source pdf-lib (MIT) and Mozilla pdf.js (Apache-2.0) libraries.