Change background color of batch of similar image

Question

Is there any way to change the background color of a batch of photos?
All photos have the same dimensions and background

I have around 100 of these images with transparent background

These images are for a TFT display and the display UI editor does not support transparent images. It will convert the transparent part to white

Answer 1

use Photoshop

• open the first image
• record a new action
• add a new layer
• reorder the new layer to be the first layer from bottom
• change Foreground Color to white
• select the Palnt Bucket Tool
• and click on the image to make the new added layer white
• save the file
• stop the action recording
• click file > Automate > Batch
• in play section select you action
• in source select the folder that contain the images
• Check action save as commands
• click okay and Photoshop will do the work for you