Yes, that is the goal. Some of the scans aren't the best, so editing them and turning them into CBZ files is what we are doing. We can always turn the cleaned up and straightened CBZ files back to PDFs that will look nicer if we decide to go that route.
I have been using a free program called PDF Shaper to extract the PDF pages to individual JPG files. It seems faster than having Photoshop do it.