How to Remove a Gemini Watermark
Google Gemini adds a small star icon (✦) to every image it generates. Here's exactly how to remove it — free, in seconds, without any software.
Drag & drop your images here
or click to upload • JPG, PNG, WEBP • up to 5 images
Takes less than 5 seconds
Step-by-step removal guide
Takes less than 30 seconds from upload to download.
Open Lumina Watermark
No installation, no account. Just open the tool in your browser — on desktop or mobile.
Upload your Gemini image
Drag and drop or click to select. Supports JPG, PNG, and WebP files up to 10 MB. Your image never leaves your device.
Wait for automatic detection
The tool detects the four-pointed star (✦) and uses reverse alpha-blending to reconstruct the original pixels beneath it.
Download the clean image
Your watermark-free image is saved as a lossless PNG. Original quality, no compression artifacts.
What exactly is the Gemini watermark?
The Gemini watermark is a semi-transparent four-pointed star (✦) placed in the bottom-right corner of every AI-generated image. It's a disclosure mechanism — not a copyright claim.
It's separate from Google's invisible SynthID watermark, which is embedded directly in the pixel data and cannot be removed by any tool.
Full explanation: What is a Gemini watermark? →Frequently Asked
Why does Gemini add a watermark?
Google adds the visible star icon to all Gemini-generated images for AI disclosure — to signal the image was created by an AI, not a human photographer.
Is it legal to remove the Gemini watermark?
For personal use, editing your own AI-generated images is generally accepted. Always check Gemini's terms of service for commercial use cases.
Will removing the watermark affect image quality?
No. Only the watermark region is processed. Every other pixel is untouched. Output is saved as lossless PNG.
Does it also remove SynthID?
No. SynthID is an invisible watermark embedded in the pixel data — it cannot be removed or detected by any visual tool.
Can I remove the watermark on mobile?
Yes. The tool works in any modern mobile browser. Upload from your camera roll and download the result — no app needed.