Smart image upload guard and format restrictions for OpenCart product pages: alert on non-transparent images if enabled, and controlled file type uploads per product.

If you want this module for other themes or other versions, just let me know and I will make it available to you (for free).

Live Demo:

Product edit (admin)

front-end

username and password for login to admin panel:demo
Installation method for (Opencart 3.x):

First download the ZIP file.

Then go toExtension>Installer Click on the (Upload) button And upload the downloaded ZIP file.

Then go to extensions>Modifications and click on the Refresh button to apply the new changes.

Free installation and support:
cartcraft.oc@gmail.com