Question 1

How many PDFs can I merge?

Accepted Answer

You can merge as many PDF files as your device can handle — typically dozens at a time.

Question 2

Will the quality of my PDFs change after merging?

Accepted Answer

No. Pages are combined as-is; text, images and formatting are preserved exactly.

Question 3

Is this tool free?

Accepted Answer

Yes. Every UltraTools utility is 100% free with no sign-up, no watermarks and no usage limits.

Question 4

Are my files or data uploaded to a server?

Accepted Answer

No. This tool runs entirely in your browser. Your files and text never leave your device.

Question 5

Do I need to install anything?

Accepted Answer

No installation is required. UltraTools works in any modern browser on desktop, tablet and mobile.

Merge PDF

Frequently asked questions