Modify an existing image overlay's source, label, or styles. Shallow-merges styles_patch into overlay.styles.
How It Works
Use when user wants to change an existing image (swap source, adjust opacity, resize, etc.). Do NOT use add_overlay — this edits an overlay already on the timeline. src: new image URL (only if replacing the image). content: display label for the image. styles_patch: partial CSS style object (opacity, width, height, objectFit, borderRadius, etc.).
Specifications
Category
Overlays
Execution
instant
Credit Cost
Free
Overlay Types
image
Tags
edit, image
Example Prompts
“change the image”
“make the image smaller”
“set image opacity to 50%”
“swap this image”
Required Parameters
overlay_id (integer)
ID of the image overlay to modify
Optional Parameters
src (string)
New image source URL (only if replacing the image asset)
content (string)
New display label
styles_patch (object)
Partial CSS styles to merge (opacity, width, height, objectFit, borderRadius)
user_text (string)
undefined
Use Cases for Overlays
Add lower-thirds and name titles for YouTube interviews
Layer data visualizations over B-roll for corporate presentations
Place map overlays on travel vlogs to show locations
How to Get Started with Change Image Properties
1.Open any project in the 6trim editor or create a new one.
2.Type a prompt in the AI assistant — for example: "change the image".
3.The Change Image Properties result appears as a image overlay on your timeline. Drag to reposition or resize.
Frequently Asked Questions
Try Change Image Properties Free
Type a prompt or use the toolbar. No download required.