Image Watermark Tool
Add text or logo watermarks to your images directly in your browser. No upload needed.
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What is this tool?
Image Watermark Tool adds text or logo watermarks to protect your images from unauthorized use. Customize watermark text, font size, color, opacity, rotation angle, and position. Choose from tiled (repeating) or single placement modes. Upload a logo image for brand watermarks. All processing happens in your browser.
When to use this tool
Protect photography portfolio
Add your name or website URL as a tiled watermark to prevent others from using your photos without permission.
Brand social media images
Add your company logo to social media images for consistent branding across all platforms.
Watermark product photos
Add "PREVIEW" or "SAMPLE" watermarks to product photos before sharing them with clients.
Copyright notice on images
Add a copyright notice with your name, year, and rights reserved text to protect your creative work.
How to use
- 1
Upload image
Click to upload or drag and drop your image. Supports PNG, JPEG, WebP, GIF, and BMP.
- 2
Configure text watermark
Enter your watermark text, adjust font size, color, opacity, and rotation. Choose tile mode for repeating watermarks or position it at center or corners.
- 3
Add logo watermark (optional)
Upload a logo image for brand watermarks. Adjust size, opacity, and position. You can use both text and logo watermarks together.
- 4
Download result
Preview the watermarked image, adjust format and quality, then download the result.
Frequently Asked Questions
What is the best opacity for a watermark?
A watermark opacity of 30-50% is recommended — visible enough to deter theft but subtle enough not to distract from the image content. For tiled watermarks, use lower opacity (15-25%). For single placement watermarks, 40-60% works well.
Can I use both text and logo watermarks?
Yes! You can add both a text watermark and a logo watermark to the same image. For example, use tiled text across the image and a logo in the corner for maximum protection.
Will watermarking reduce image quality?
Watermarking itself does not reduce quality — it simply draws additional pixels on top of the original image. When you export as PNG (lossless), the result has the same quality as the original. JPEG and WebP apply compression, so use a high quality setting (90+) for best results.
What rotation angle should I use for tiled watermarks?
A diagonal angle of -30° to -45° is most common and effective for tiled watermarks. This angle makes the watermark difficult to crop out while still being readable.