For the record: the images are the same size as in the Raw files, but mine are PNGs, which are larger. As you can see by the torrents, others have loaded smaller versions.
By the way, I use ACDsee for basic sizing and minor effects which can be done in bulk. It's an older version but it still works well.
All the images are bloated, do you know how to save optimized?
Here is an old guide but you can apply the setting with any photoshop. http://www.insidescanlation.com/etc/How-to-edit-manga-with-Photoshop/rawr/editguide/3.html
Video tutorial: https://www.mediafire.com/file/gki6vhsxtmvq1qa/Export_PNG-8_Images_with_Automate_Batch_-_Photoshop.mp4/file
@baha815 A free program, irfanview, works well for batch conversion, resizing, etc. Images can be resized individually using MS Paint. These are, of course, post-download processes.