Change Default Image Trace settings?

Hi @ann20291113, because you tagged scripting, here is a script approach that might be useful:

/**
 * Demonstrate trace of selected image using a loaded preset.
 * @author m1b
 * @version 2025-10-08
 * @discussion https://community.adobe.com/t5/illustrator-discussions/change-default-image-trace-settings/m-p/15538181
 */
(function () {

    var doc = app.activeDocument;
    var image = doc.selection[0];

    if (!image || !image.trace)
        return alert('Please select an image and try again.');

    var trace = image.trace();
    trace.tracing.tracingOptions.loadFromPreset('Silhouettes');

    // trace.tracing.expandTracing();

})();

This example loads the "Silhouettes" preset. Change this to your own preset. It is possible via scripting to alter the preset and even save as a new preset.

- Mark 

Hi Ann,

If you are working on Mac OS there is a work around for replacing the default Image trace settings. It does involve making an edit to the Vectorizing Preset config file within the hidden library, but if you are interested I can give you a step by step guide. Let me know & I can provide the steps. 

In Illustrator 2025, Adobe removed direct editing of the old Vectorizing Presets file. You can’t change the true default globally, but here’s a quick workaround: set up your preferred “Silhouette” trace settings once, click Save Preset, and name it something like “Default Trace.” Then you can use it in one click or assign it to an Action for automation.