A PDF watermark is text placed across every page — like CONFIDENTIAL, DRAFT, or your company name. It marks documents and discourages unauthorised copying.
Common uses
- Mark a document as CONFIDENTIAL or DRAFT.
- Add your company or website name to reports.
- Show COPY or SAMPLE on shared files.
Steps
- Open the Watermark PDF tool and add your PDF.
- Type the watermark text.
- Set the size, colour, opacity and angle (diagonal or straight).
- Click Apply & Save to download — the watermark is added to every page.
Tips
- Lower opacity keeps the text readable underneath.
- A diagonal watermark is harder to remove or crop.
Everything runs in your browser; your PDF is never uploaded.