Mark a PDF
Add page numbers, a header, a text watermark, a picture stamp, or bookmarks. The words stay. This is not a certified signature.
What it does: Adds page numbers, a text mark, crop box, blank pages, or n-up sheets.
What it does not: Not a full annotation suite — no freehand drawing or sticky notes.
Limits: One PDF at a time. Password files are refused.
Open a PDF. The words stay in the file. A picture stamp is not a certified signature.
Cropping only insets the visible page. Filling a form only writes matching text fields. Embedded JPEG pictures can be saved again at lower quality.