Watermark PDF
Add custom text watermarks to your PDF with adjustable size, color, opacity, and rotation — free and private. Your original content stays intact with no added watermarks from us.
Private & Secure
Watermarking happens entirely in your browser using pdf-lib. Your PDF is never uploaded to any server.
Fully Customizable
Control every detail — text, font size, color, opacity, rotation angle, and position. Live preview shows exactly how it will look.
Frequently Asked Questions
Upload your PDF to Toolsz Watermark PDF, type your watermark text, adjust size, color, opacity, and rotation, then click Apply. The watermarked PDF is created locally in your browser — no signup, and Toolsz never adds its own watermark to your output.
Yes — Toolsz adds YOUR custom watermark but never adds its own branding to your PDF. This is different from iLovePDF and Smallpdf which add their logo/watermark on free-tier output. Toolsz output is clean — only your custom watermark appears.
Yes — Toolsz Watermark PDF supports adjustable rotation from -90° to 90°, letting you create diagonal watermarks across pages. You can also adjust opacity so the watermark doesn't obscure the underlying text.