Merge PDF files into one

Common questions

Can I change the order the PDFs are merged in?

Yes — use the up and down controls next to each file before merging. They combine in whatever order the list shows.

Is there a limit on how many PDFs I can merge?

No fixed limit, but merging many large PDFs uses more of your device’s memory and takes longer, since the work happens entirely in your browser.

Will merging affect the quality of pages in my PDFs?

No — pages are copied into the new file as-is, with no re-rendering or recompression, so quality is unchanged.