Question 1

Are my PDF files uploaded?

Accepted Answer

No. UsefulFox processes them locally in your browser.

Question 2

How many PDFs can I combine?

Accepted Answer

You can select multiple files, although very large batches depend on your device memory.

Question 3

Does merging change the originals?

Accepted Answer

No. The tool creates a new PDF and leaves the original files unchanged.

Merge PDF