Linghu AI is a free browser-based tool for adding text and image watermarks to videos. Customize the text, font, position, size, opacity and timing, or use Random, Bounce and High Security motion modes. Media processing stays in your browser.
Customize the text, font, color and size
Upload an image and place it over the video
Choose from several bundled display and handwriting fonts
Random, Bounce and High Security motion modes
Balance visibility and protection with precise opacity controls
Process videos in the browser without uploading them to our application server
Choose an MP4, MOV or another supported format
Select a text or image watermark
Adjust the content, position, size and opacity
Fixed, Random, Bounce or High Security
Start processing and download the completed video
The tool re-encodes the video after rendering the watermark. Preview the result before publishing because normal compression changes can occur.
Common browser-decodable formats such as MP4 and MOV are supported. MP4 generally offers the best compatibility.
Yes. Drag the watermark anywhere in the frame, or use an animated mode to vary its position over time.