Merge PDF files
Combine multiple PDFs into one document. Free, fast, and 100% private.
- Drag files up or down to reorder before merging.
- You can add as many PDFs as you like.
- Your files never leave your device.
How to use
Click "Select PDFs" or drag and drop multiple PDF files onto the page.
Drag files up or down to set the order they will appear in the merged PDF.
Click "Merge PDF" and instantly download the combined file — nothing is uploaded.
Why use OfflinePDFy?
Files never leave your device. Zero uploads.
No account, no subscription, no limits.
Install as a PWA and use without internet.
Works on desktop, tablet, and mobile.
Frequently asked questions
Is it free to merge PDF files?+
Yes, OfflinePDFy is completely free to use with no limits. You can merge as many PDFs as you like.
Are my files uploaded to a server?+
No. All merging happens entirely inside your browser using JavaScript. Your files never leave your device.
How many PDF files can I merge at once?+
There is no hard limit. You can merge as many PDF files as your browser can handle.
Can I reorder pages before merging?+
Yes. Simply drag and drop the files in the list to set the order before clicking Merge.