How to Add Your Logo as a Watermark on a Video
If you publish videos under your name or your shop's brand, a small logo in the corner protects your work when it is reshared and tells viewers where it came from at a glance. This tool overlays a logo image on your video, lets you choose its position and width, and gives you the new video as an MP4.
All processing happens inside your browser with ffmpeg.wasm; the video and logo are only loaded into the page's memory and are not sent to any server. The logo is scaled to the width you set while keeping its proportions, placed on every frame for the full duration, and the original audio is copied unchanged.
How to use it
- Drag your video into the first area, Drag the video here, or click it to browse.
- Drag your logo into the second area, Drag the logo/watermark image here.
- Choose a Position: bottom-right (default), bottom-left, top-right, top-left or center.
- Set Watermark width (pixels). The default is 150, with a suggested range of 30 to 800.
- Click Add & download and wait; the video downloads with "-watermarked" added to its name.
Your options
- Five preset positions; in the four corners the logo sits 20 pixels in from the edges so it does not touch the frame.
- Logo width in pixels, with the height calculated automatically so the logo is not distorted.
- The watermark appears for the entire video, first frame to last.
- Original audio is kept without re-encoding, and the result is saved as MP4.
Practical examples
- An online shop brands its product demo clips before posting them on social media.
- A trainer adds an academy logo to recorded lessons shared with students.
- A videographer stamps preview clips sent to clients before final delivery, using the center position so it is hard to crop out.
- A creator keeps a consistent look by always placing the same logo in the same corner.
Tips and notes
- Use a PNG with a transparent background so only the logo shows, without a white box around it.
- Width depends on video resolution: 150 px looks small on a 1920-wide video and fairly large on a 640-wide one. Start around one tenth of the video width and adjust.
- Avoid spots where captions or platform buttons usually appear, such as the bottom center of vertical videos.
- Because the picture has to be re-encoded, this takes longer than trimming, and long videos need plenty of browser memory.
- The tool places an image only; it does not write text or control opacity. For a faded mark, prepare a semi-transparent PNG beforehand.
To watermark photos instead, use image logo watermark. To shorten the video first, try the video trimmer, and to convert WebM to a more compatible format use WebM to MP4.