Image Watermark Tool

It depends on the purpose. For subtle branding on images you're sharing publicly, 20–40% opacity lets the image shine while still being visible. For draft or confidential images sent to clients, 60–80% makes the watermark clearly visible and harder to ignore. For maximum theft deterrence on preview images, a tiled diagonal watermark at any opacity is more effective than a single watermark in a corner, which can be easily cropped out.

Any watermark can technically be removed with enough effort — there is no digital watermark that is truly theft-proof. A corner watermark can be cropped. A low-opacity watermark can be cloned out in Photoshop. A tiled diagonal watermark is much harder to remove cleanly. The goal is to make removal difficult enough that most people won't bother, and to establish clear ownership if a dispute arises.

For photographers: your name or business name, optionally with a © copyright symbol. For brands: your logo as a PNG with a transparent background. For content creators: your @handle or website URL. For documents sent for review: "Confidential", "Draft", or "Sample" text watermark. Keep it simple — a watermark should be noticeable but not destroy the image's visual impact.

Export your logo from your design tool (Canva, Illustrator, Figma, Photoshop) as PNG with "transparent background" enabled. The resulting PNG file will have a transparent background (shown as a checkerboard pattern in most tools). Upload this file as your logo watermark. If your logo has a white background, you'll need to remove it first — use a background removal tool to get a clean transparent PNG.

Yes — upload as many images as you need. The same watermark (text or logo) is applied to all images with identical settings. Download them individually or as a ZIP file. Watermark size is set as a percentage of each image's width, so it scales proportionally across images of different dimensions.