Watermark PDF — Stamp Text on Every Page, Privately
Type your watermark, tune size / rotation / opacity / color, apply to all pages or a range, download instantly. Your document never leaves your browser.
Quick answer: Add a text watermark to every PDF page: DRAFT, CONFIDENTIAL, your brand — diagonal or horizontal, adjustable size, color and opacity. Free, no signup, processed in your browser.
How to use
- Drop your PDF — page count shows.
- Type the watermark — adjust size, opacity, angle, color; choose all pages or a range.
- Apply & download — every selected page gets the stamp; download the file.
About this tool
Stamp a professional text watermark — DRAFT, CONFIDENTIAL, SAMPLE, your company name — onto every page (or a range) with full control: diagonal or horizontal, font size, opacity, gray or colored. Built on pdf-lib, everything happens locally; the watermarked file is written on your device. Honest note: this tool adds text watermarks. Image/logo watermarks (PNG stamping) are supported by our PDF editor's text flow only in text form today; a background-image watermark needs raster flattening, which this tool intentionally avoids to keep text crisp and file size small.