Image Watermarker - Online Add Text or Logo to Photos

An image watermark is a visible overlay — either text or a logo — placed on a photo to indicate ownership, brand identity, or copyright protection. Adding watermarks helps deter unauthorized use of your images, promotes your brand when photos are shared, and establishes professional credibility. Photographers, e-commerce sellers, and content creators commonly use watermarks to protect their visual assets online.

Yes! This tool is 100% free with no hidden costs, no registration required, and no watermarks added by us. Most importantly, all image processing happens directly in your browser using client-side technology. Your photos are never uploaded to any server, ensuring complete privacy and security. You can watermark sensitive or personal images with total peace of mind.

The tool supports all common image formats including JPG/JPEG, PNG, WebP, BMP, and HEIC files. For logo watermarks, we recommend using PNG images with transparent backgrounds for the cleanest results. The output is saved as a high-quality PNG file to preserve image detail. Maximum file size is 20MB, and images larger than 1600px wide are automatically scaled down for optimal performance while maintaining excellent quality.

Text watermarks are ideal for quickly adding copyright notices, names, dates, or website URLs directly onto images. They're easy to customize with different fonts, sizes, and colors. Logo watermarks work best for brand recognition — upload your company logo or signature as a PNG file with a transparent background, and it will appear professionally overlaid on your photos. Many professionals use both: a logo for branding plus subtle text for copyright information.

A single watermark places one instance of your text or logo at a specific position on the image (such as the center or bottom-right corner). This is subtle and commonly used for portfolio images. A tiled (repeated) watermark places multiple copies across the entire image in a grid pattern, making it much harder to crop or remove. Tiled watermarks provide stronger protection against unauthorized use, which is why stock photo agencies and professional photographers often prefer this method.

The ideal opacity depends on your goal. For subtle branding (like portfolio images), 30-50% opacity keeps the watermark visible without distracting from the photo. For stronger copyright protection, 50-70% opacity makes the watermark harder to remove while still allowing the image to be viewed. For maximum deterrence against theft, 70-90% opacity with tiled placement is most effective. Generally, white watermarks at 40-60% opacity work well on most photos.

Absolutely! You can click any of the 9 preset positions on the grid (top-left, center, bottom-right, etc.) for quick placement. For precise control, you can also drag the watermark directly on the photo preview with your mouse or finger (touch devices). The position updates in real-time as you drag. This gives you pixel-perfect control over where your watermark appears on the final image.

No, the underlying photo quality is fully preserved. The watermark is rendered as an overlay on top of your original image using the HTML5 Canvas API. When you download, the output is saved as a PNG file which uses lossless compression — meaning no quality degradation. The original image pixels underneath the watermark remain intact. For best results, we recommend starting with the highest quality original file available.