How to use Add page numbers
Add your PDF.
Choose where the numbers go and how they look.
Press "Add page numbers" and download the result.
Questions
Can I skip the cover page?
Yes. Tick "Skip the first page" and numbering begins on page two.
Can numbering start from a number other than 1?
Yes. Set "Start at" to any number.
Are my files uploaded to a server?
No. Dekiko processes your files inside your own browser. They are never uploaded, so nobody else can see them, and they are gone when you close the tab.