Free PDF Watermark Tool Online

Add a custom text watermark to every page of your PDF. Preview changes live before downloading. Choose position, rotation, color, size and opacity. 100% browser-based — no uploads, no sign-up.

💧 PDF Watermark

Upload a PDF, customize your watermark, and preview changes live before downloading.

📂 Click to select a PDF or drag & drop Single PDF file · All pages watermarked
📄

✏️ Watermark Text

⚙️ Appearance

60
20%

🎨 Color

Gray
Red
Blue
Green
Gold
Purple
Black
Custom
👁️ Live Preview LIVE
💧

No PDF Loaded

Upload a PDF to see a live preview of your watermark here. Changes update instantly.

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📖 How to Add a Watermark to a PDF

1

Upload Your PDF

Click the upload area or drag and drop your PDF file. It loads instantly in your browser — nothing is sent to any server.

2

Customize Your Watermark

Type your watermark text (e.g. CONFIDENTIAL, DRAFT, DO NOT COPY). Adjust font size, opacity, rotation, position and color. Enable tiling to repeat the watermark across the whole page.

3

Preview Live

See every change reflected instantly in the live preview panel on the right. Navigate through multiple pages to check each one.

4

Download

Click Apply Watermark & Download PDF. Your watermarked PDF is generated and downloaded instantly.

❓ Frequently Asked Questions

How do I add a watermark to a PDF online? +
Upload your PDF file, type your watermark text, choose your position, rotation, color, size and opacity, then click Apply Watermark & Download PDF. The whole process takes under a minute.
Is my PDF uploaded to a server? +
No — your PDF never leaves your device. All processing happens locally in your browser. Nothing is uploaded to any server at any point. Your documents are completely private.
Can I see the watermark before downloading? +
Yes — this tool features a live preview that updates in real time as you change any setting. You can see exactly how the watermark will look on your PDF pages before downloading.
What watermark positions are available? +
You can place the watermark in 9 positions: top-left, top-center, top-right, middle-left, center, middle-right, bottom-left, bottom-center, and bottom-right. You can also enable a tile/repeat pattern to cover the entire page.
Can I customize the watermark color? +
Yes. Choose from 7 preset colors (gray, red, blue, green, gold, purple, black) or use the Custom option with a full color picker and HEX input to use any color you want.
Is the watermark applied to all pages? +
Yes. The watermark is applied to every page of your PDF automatically. Use the page navigation arrows in the preview to check how the watermark looks on different pages before downloading.