Question 1

Is it safe to merge PDFs here?

Accepted Answer

Yes, completely safe. Your PDF files never leave your browser. All merging is done client-side using JavaScript (pdf-lib), so no data is uploaded to any server.

Question 2

How many PDFs can I merge?

Accepted Answer

There is no fixed limit on the number of PDFs you can merge. Processing happens in your browser, so performance depends on your device's memory. Most users can merge dozens of files without any issues.

Question 3

Can I reorder pages?

Accepted Answer

Yes, you can reorder the PDF files before merging using the arrow buttons. The final merged document will follow the order you set.

Question 4

Does it work offline?

Accepted Answer

Once the page is loaded, the merging functionality works entirely in your browser. However, you need an internet connection to initially load the tool.

Free PDF Merge Tool Online