Watermark Adder
Upload one or more images and stamp them with a text or logo watermark. Choose one of nine grid positions, adjust opacity, size, rotation, and margin, then download every watermarked image individually or all at once. All rendering happens on canvas locally - nothing is uploaded.
Reviewed by Vincenzo Manto, Founder & Lead Developer · Last updated September 27, 2026
How it works
- 1
Drop or select one or more images to watermark.
- 2
Choose a text watermark or upload a logo image to use instead.
- 3
Pick a position on the 9-point grid and adjust opacity, size, rotation, and margin.
- 4
Download each watermarked image individually, or all of them at once.
Protect your images before sharing them
Whether you're a photographer sharing proofs, a designer sending drafts, or a business protecting product photos, a visible watermark discourages unauthorized reuse. This tool applies a consistent watermark across a whole batch in seconds.
Fine control without an image editor
Position, opacity, size, and rotation are all adjustable in real time, so you can find the sweet spot between a watermark that's clearly visible and one that doesn't ruin the photo. There's no need to open Photoshop or GIMP for a repetitive task like this.
Frequently asked questions
Can I watermark several photos at once?
Yes. Upload multiple images and the same watermark settings apply to every one of them, with a download button per image plus a download-all button.
Can I use my own logo instead of text?
Yes, switch to 'Logo watermark' mode and upload a PNG or JPG. Transparent PNG logos work especially well since the surrounding area stays see-through.
How is the watermark positioned?
Pick one of the 9 standard positions (corners, edge midpoints, or dead center). A configurable margin keeps the watermark a comfortable distance from the image edges.
Are my images uploaded anywhere?
No. Everything, reading the image, drawing the watermark, and rotating/positioning it, happens locally in your browser using the canvas API.
Can I rotate the watermark?
Yes, rotate it anywhere from -180° to 180°, useful for diagonal 'sample' or copyright stamps.
Related tools
Screenshot Beautifier
Turn a screenshot into a studio-quality mockup with window frames, 3D tilt, shadows, and redactions.
Screenshot Showcase Generator
Transform screenshots into professional multi-device showcase graphics.
Image to Video Converter
Turn a set of images into a slideshow video, exported as MP4 or WebM.