Merge PDF Files Online — Free & Private
Combine multiple PDF files (and images) into one document, in your browser. Free, no sign-up, files never uploaded.
🔒 Files are processed on your device — nothing is ever uploaded to a server
Drag in all your PDFs, arrange them in any order, and get a single clean document. You can even mix in JPG or PNG images — they are converted to pages automatically.
How it works
- Select or drag in all the PDF files you want to combine.
- Drag the file cards to set the order.
- Click Merge, preview the result, and download.
Why MyPDF
- Truly private — Everything runs inside your browser. Your files are never uploaded, stored, or seen by anyone — unlike most online PDF sites.
- Free with no sign-up — No account, no daily limits on core tools, no watermarks added to your files.
- Fast — No upload/download round-trip to a server. Large files start processing instantly.
- Works everywhere — Any modern browser on Windows, Mac, Linux, Android, or iPhone. Installable as an app (PWA).
FAQ
How many files can I merge?
There is no fixed limit — it depends on your device's memory, since everything runs locally.
Is it safe for confidential documents?
Yes. Processing happens locally in your browser (client-side). You can even disconnect from the internet after the page loads and most tools keep working.
📖 Full guide: How to merge PDF files for free