I have about 110 pages, saved as individual image files, to our graphic novel/comic book that need to be compressed in order to be used in our mobile tablet app. Currently, each image is a jpeg with a WxH of 2138 x 2850 and is 1MB-3MB in size - way too large to use within an android app.
Ideally, I would like the compressed images to be no less than 1200 px in width and be in a lossless format to allow for zooming.
I have attached a sample page as an example. I am looking to work with someone who has experience in compressing images for mobile apps.