How to use the Watermark PDF tool
- Drop a PDF.
- Type your watermark text and set size, color, opacity and angle — the preview updates live.
- Choose a single centered stamp or a tiled pattern.
- Click Add watermark and download.
Protect and label your documents
A visible watermark such as CONFIDENTIAL, DRAFT or your company name discourages sharing and makes the status of a document obvious. The watermark supports any language, including Arabic, and can be placed once in the center or tiled across the page.
Frequently asked questions
Can I write in Arabic?
Yes. The watermark is drawn with your system fonts, so Arabic and other scripts work.
Can the watermark be removed later?
It is part of the page content, so it cannot be simply switched off. Keep your original file.
Is the Watermark PDF tool really free?
Yes — completely free, forever. There is no sign-up, no payment, no watermark and no daily limit.