Question 1

Are my PDF files uploaded to a server?

Accepted Answer

No. The merging happens entirely in your browser using JavaScript. Your files never leave your device and nothing is uploaded or stored.

Question 2

How many PDFs can I merge at once?

Accepted Answer

There is no fixed limit. You can add as many PDFs as you like; the practical limit depends on your device's memory since everything is processed locally.

Question 3

Can I change the order of the files?

Accepted Answer

Yes. Drag a file by its handle, or use the up and down buttons, to reorder it. The merged PDF follows the order shown in the list.

Question 4

Does merging reduce the quality of my PDFs?

Accepted Answer

No. Pages are copied as-is, so text, images, and vector graphics keep their original quality.

Question 5

Is this PDF merger free?

Accepted Answer

Yes, it is completely free with no login, no watermark, and no limit on the number of merges.

PDF Merge