For this sort of work I found using a lambda function with a trigger on s3 upload works very well, aws-lambda-image seems like a popular project to use instead

For this sort of work I found using a lambda function with a trigger on s3 upload works very well, aws-lambda-image seems like a popular project to use instead of writing your own code https://github.com/ysugimoto/aws-lambda-image https://github.com/ysugimoto/aws-lambda-image