Watermark PDF Online Free — Add Text Watermarks to PDF

You can add custom text watermarks such as CONFIDENTIAL, DRAFT, SAMPLE, copyright notices, or custom company names.

Yes. You can customize font size, opacity (transparency), text color, and choose between diagonal (45°) or horizontal placement.

No. FileBuddy provides tools to add protective text labels and stamps to your files. It does not provide watermark removal tools.

Yes. You can choose to apply the watermark across all pages or specify selected page ranges.

Watermark PDF

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Add customizable text watermarks and labels to PDF pages. Mark documents with labels like CONFIDENTIAL, DRAFT, SAMPLE, or custom copyright notices.

View key capabilities & tips

Key capabilities:

Customize watermark text, font size, opacity, color, and diagonal/horizontal angle
Apply watermark across all pages or specify selected page ranges
Position watermark in foreground or background layer behind page text
Client-side rendering keeps proprietary documents secure in browser memory

Tips:

Use lower opacity (20–40%) so that the underlying document text remains easy to read.
Choose diagonal orientation (45°) for maximum visibility across the full page surface.
Review the output to ensure the watermark does not obscure critical signatures or numbers.

What types of watermarks can I add to my PDF?

Can I adjust watermark transparency, color, and angle?

Does FileBuddy remove existing watermarks from PDFs?

Can I apply the watermark to only specific pages?