Watermark PDF
Add custom text or image logos onto your PDF documents online for free. Control typography, opacity, rotation angle, and repeat patterns.
Information
Stamp text or a logo across pages
Type words like SPECIMEN or pick an image, set opacity and angle, apply to all pages or a range, and save the watermarked copy.
Built for sample documents
Quotation drafts, internal handouts and 'not for submission' copies are the usual cases; a visible stamp prevents confusing a draft with the final file.
Applied inside the tab
The file is read and rewritten locally. The watermark is burned into the copy on your device, with nothing sent anywhere.
Angle, spacing and repeat
Diagonal repeats cover the full page; a single corner stamp suits letterheads. Opacity keeps the text underneath readable.
The document underneath stays sharp
The stamp is added as vector text or a high-quality image, so the original content is not re-compressed into a blurry page.
Same result on phone and laptop
Settings carry over between devices because the tool is the same web page — start on a phone, finish on a desktop if needed.