AI Thumbnail Editor for Video Courses

How it works

1. 1

   Upload the instructor or course photo

   Drop the instructor headshot, lesson screenshot, or course image into EditThisPic. Works with photos taken at home, at events, or screenshots from recording sessions. Best results when the subject is clearly visible.

   Expect: Course thumbnail edits process in 15-25 seconds. Background replacements may take up to 30 seconds.
2. 2

   Describe what needs changing

   Type the edit: 'replace the home office background with a clean gradient background in dark navy', 'remove the bookshelf behind me and fill with a solid dark background', 'brighten the photo and even out the lighting'. Be clear about what the replacement should look like. No selection tools needed.

   Tip: Course thumbnails need to work at small sizes in course directories. Dark backgrounds with good contrast between your face and the background make thumbnails readable at any size.

   Copy one of these to get started:

   Home office background needs replacing replace the home office background with a clean dark navy gradient background that looks professional for a course thumbnail

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   Busy bookshelf or wall in background remove the bookshelf behind me and replace with a clean slightly blurred dark background

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   Instructor photo looks dark or flat brighten the instructor photo, add contrast, and make it look professionally lit for a course thumbnail

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   Matching background across all modules replace the background with a solid gradient from dark charcoal to near-black that I can use consistently across all course modules

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   2 more prompts

   Remove distracting element near instructor remove the lamp or light stand visible at the right edge of the frame and fill with the background

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   Screenshot from course video needs polish clean up this video screenshot — fix the lighting, sharpen the image, and improve overall quality for use as a thumbnail

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3. 3

   Preview at thumbnail size

   Course thumbnails appear small in Udemy search results and marketplace listings. Check that your face is clearly visible and the background isn't competing for attention. Clean, high-contrast works best.

4. 4

   Refine edges if needed

   If hair edges look rough after background replacement, tap a marker on the hair area and add 'blend the hair edges naturally' to your description.

   Tip: Course thumbnails often feature the instructor prominently — clean hair edges are worth the extra refinement step if the first pass isn't perfect.