Is my PDF uploaded to a server?

No. Page numbers are added entirely in your browser. Your file is never uploaded anywhere.

Can I start numbering from something other than 1?

Yes. Set the "Start at" value to any number, useful if this document continues from another one.

Choose bottom center, bottom right, bottom left, top center, or top right.

No. Encrypted or password-protected PDFs can't be read in the browser. Remove the password first.

Add page numbers to every page of a PDF, entirely in your browser.

Drag and drop a PDF file, or click to choose one

Upload a PDF, choose where the page number should appear and what number to start counting from, then download the numbered PDF.

Is my PDF uploaded to a server?: No. Page numbers are added entirely in your browser. Your file is never uploaded anywhere.
Can I start numbering from something other than 1?: Yes. Set the "Start at" value to any number, useful if this document continues from another one.
Where can the page numbers be placed?: Choose bottom center, bottom right, bottom left, top center, or top right.
Does this work with password-protected PDFs?: No. Encrypted or password-protected PDFs can't be read in the browser. Remove the password first.