Add page numbers to a PDF

No. The conversion runs entirely in your browser. The file never leaves your device – there is no server that could see it. Once the page has loaded, the tool even works offline.

Yes – set “First number”. With a first number of 5 the pages read 5, 6, 7 … Use {last} instead of {total} in the format if the second value should be the last number (e.g. “5 / 12”) rather than the page count.

The new numbers are drawn on top of the existing page content; nothing is removed or edited. Pick a position where the page is empty, or the two will overlap.

The text is set in Helvetica, one of the fonts every PDF viewer has built in – so nothing needs to be embedded. That font covers Latin letters including accents (é, ü, ç …), digits and common punctuation. Greek, Cyrillic, Asian scripts and emoji are not available; you get a clear message instead of a box.

Yes. The file is edited in place, so bookmarks, links, form fields and attachments stay exactly as they were.

They are not supported yet. Open the file in a PDF viewer, enter the password, save a copy without protection and use that copy here.