Thanks for that link to the resize images site, I marked in my favorites to look into later. Permies runs at a loss due to image sizes? I do too or would if I wasn't careful. We live in the boonies and use a verizon hotspot for internet. We get 15 gigs a month and it costs $10 bucks per gig if we go over so I have to be careful even viewing the site. I used to have a program called Fireworks that I used for all my image needs. I could do do anything I wanted with it but it was very old and Adobe bought out the company years ago and killed it. My copy died with my old computer. It was easy to crop, add layers, resize, batch process and everything I needed. A 10 mb file could easily be reduced to 100 kb. Losing it is why I haven't been posting nearly as many photos.
Now I've been experimenting with Photoshop Elements and a free one called Gimp, neither is as intuitive or easy to use as Fireworks was. They seem to both do what Fireworks but in many steps instead of just a few and batch processing is a nightmare.
How exactly does the https://bulkresizephotos.com/en site work? You upload the image and then download the result? That might not work for me as I'm still transmitting the giant file at least once.