Plain Tools

Add Watermark to PDF

Apply text or image watermark overlays on every PDF page with configurable opacity, position, size, colour, and rotation angle. Processing runs locally in your browser. Files never leave your device.

Before you start

Upload

Upload one PDF, then choose text or image watermark mode and set placement options.

Result

Apply the watermark and download a new PDF with overlays on each page.

Local processing

Processing runs in your browser session. Files are not uploaded by default.

Limitations

Watermarks are visual overlays and do not add cryptographic protection.

Add watermark to every page
Add text or image watermark overlays locally in your browser. Files never leave your device.

Drop a PDF here, or click to browse

Local-only processing with no upload step

Click or drop files to continue

Watermark options
Upload a PDF and configure your watermark options.

Watermark text

Position

Opacity (0.25)

Rotation angle (35°)

Text size (42px)

Text colour

Apply watermark
Watermark is applied to each page in a new output file.