Add Watermark to Images - Protect Your Photos Online for Free

A watermark is a semi-transparent overlay (text or logo) placed on an image to indicate ownership or discourage unauthorized use. It doesn't prevent copying entirely, but it makes unauthorized use traceable and less appealing.

Watermark Best Practices

• Position - center (most visible) or corner (less intrusive)
• Opacity - 20-40% is visible but doesn't ruin the image
• Size - large enough to read, small enough to not dominate
• Rotation - diagonal across the image is harder to crop out

Text vs Logo Watermarks

Text watermarks are simpler and work for personal use (e.g., copyright, DRAFT, PREVIEW). Logo watermarks are stronger for branding but require more setup and a transparent PNG logo.

Does Watermarking Reduce Image Quality?

Adding a watermark requires re-encoding the image, which can cause slight quality loss with lossy formats (JPG). For best results, start with a high-quality original and export at 90-95% JPG quality.

Free Image Watermark Tool

Use SnapSum Image Watermark - upload your image, type watermark text, adjust opacity/size/position/rotation, download. Supports JPG, PNG, WebP. 100% browser-based.