What Watermark PDF does
Watermark PDF draws one text value across all pages at a 35-degree angle using semi-transparent gray Helvetica Bold. The size adapts to the page dimensions and the watermark is centered consistently.
The operation adds visible page content to a rewritten PDF. It does not apply permissions, prevent copying, prove ownership, or remove existing content, and it is not a substitute for secure document controls.
How to use Watermark PDF
- Choose one PDF no larger than 25 MB.
- Enter up to 120 supported characters for the watermark text.
- Add the watermark, download the new PDF, and inspect placement on pages with different sizes or rotations.
Important details
One style is applied to every page
The text is centered, rotated 35 degrees, colored gray, and drawn at 22 percent opacity. There are no per-page position, color, image-logo, or tiling controls in this tool.
Standard-font encoding is limited
The embedded Helvetica Bold font accepts WinAnsi-compatible text. Unsupported scripts or symbols are rejected instead of being written as missing glyphs.
Practical uses
- Mark an internal review copy as DRAFT or CONFIDENTIAL.
- Add a consistent department label to a printable packet.
- Identify a proof copy before sending it for approval.
Privacy and limitations
The PDF and watermark text remain on your device while the browser modifies and saves the document. Nothing is uploaded to PagesTools.
The source is limited to 25 MB and 100 pages, and text to 120 WinAnsi-compatible characters. The fixed style cannot use images or per-page placement, encrypted or active PDFs are rejected, and rewriting can invalidate digital signatures.