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+Outline:
+
+recursively look for all .jpg files and store them somewhere (maybe in an array?)
+
+start while loop (might make this a for loop per: https://www.geeksforgeeks.org/how-to-iterate-over-files-in-directory-using-python/)
+
+store current image (path probably) in a variable
+
+use opencv to grab bottom right corner of image (https://stackoverflow.com/a/58984370)
+
+convert the output to greyscale then binary
+
+use pytesseract image-to-string on output to find page number (saving this to a variable inside the loop)
+
+rename the input file to the page number variable
+
+iterate through the list/array of .jpg files (https://www.geeksforgeeks.org/how-to-iterate-over-files-in-directory-using-python/)
+
+end loop
+