Page numbers
In Add Page Numbers to PDF, choose a position, a format such as 1, Page 1, or 1 of 10, and the starting number. You can leave the first page unnumbered so a cover page does not count.
The numbers are drawn onto each page in a standard font and cannot be edited afterward.
Watermarks and text notes
In Add Text & Watermark to PDF, enter your text and choose either a diagonal watermark or a note at a position. Adjust the font size, color, opacity, and the pages it applies to.
A watermark is a visual marker, such as DRAFT or CONFIDENTIAL. It is not a security feature; anyone with PDF editing software may be able to remove it.
What it is not
This tool draws plain text. It does not create editable comments, highlights, or drawings, and it does not edit existing text. Only Latin letters, numbers, and common punctuation are supported because it uses a built-in font.
Privacy and checking the result
Both tools run in your browser and do not upload the PDF. Open the result before sharing it, and check rotated or unusually sized pages. Combine with Protect PDF if the document also needs a password.