Merge PDF Files
Combine multiple PDF files into a single document. Everything happens right in your browser — your files are never uploaded to a server.
Click to select PDF files or drag and drop them here
You can select multiple files at once
How to merge PDF files
Click the box above (or drag and drop) to select two or more PDF files from your device. Reorder them if needed using the up/down buttons, then click "Merge PDFs." A single combined PDF will download automatically — no email, no sign-up, no upload to any server.
Is it safe? Where do my files go?
Your PDF files never leave your device. This tool runs entirely in your browser using JavaScript — nothing is uploaded, stored, or sent anywhere. Once you close this page, everything is gone. This makes it safe for sensitive or private documents.
Frequently asked questions
Is there a file size or count limit?
Since merging happens in your browser rather than on a server, the practical limit depends on your device's memory. Most everyday use cases (a handful of documents up to tens of MB) work smoothly.
Can I change the order of pages?
You can reorder the files before merging using the up/down arrows next to each file. The final PDF will follow that file order, with each file's pages in their original sequence.
Does this work on mobile?
Yes, as long as your mobile browser supports file selection and JavaScript, which all modern browsers do.