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Image Template Tool

Flet · Desktop / 2025
The processing workflow
  1. 01Source images
  2. 02Templates and zones
  3. 03Batch processing
  4. 04Output images

21,000

listings processed

5+

templates per listing

100,000+

template overlays

More than 100,000 template overlays, replacing repetitive manual image preparation for marketplace listings.

Where it started

A client needed to prepare many similar product images. I built a desktop tool around that workflow.

The problem

Cut, paste, crop, repeat. Much of the image preparation was manual even though the layout rules were the same.

What I built

  • Built a Windows desktop application with Flet
  • Implemented configurable template zones and layout modes
  • Added batch image processing and color detection
  • Integrated S3 and Excel into the client workflow

How it evolved

The first client uses it daily and referred a second customer. I adapted the tool to their process too. It is now being developed into a free public product.

The outcome

Over 100,000 template overlays across 21,000 listings, with at least five templates each. This is processing volume, not a user or download count.

What this demonstrates

Turning a manual workflow into a daily-use tool, processing images in batches and adapting the solution to different customers.

About the free tool ↗