How to use Merge PDF
- Choose your files, or drag & drop them anywhere on the page.
- Reorder or adjust the settings, then hit the big button.
- When it's ready, click "Save." Your files never leave your device.
FAQ
Can I change the order?
Yes. Drag the thumbnails or use the arrows to reorder. Files are joined from top-left to bottom-right.
Can I merge password-protected PDFs?
Not yet. Please remove the password first.
Is it safe to use Merge PDF with my files?
Yes. Your files are never uploaded — they're processed only inside your browser. Every page is served with a policy that blocks outgoing connections (Content-Security-Policy connect-src 'none'), and the counter in the bottom-left shows the data sent: 0 bytes.
Is it free? Do I need an account?
It's completely free, no account needed, and there are no usage limits.
Does it work on my phone?
Yes. It works in mobile browsers on iPhone and Android. For very large files, a computer will be faster.