import pdfplumber
pdf_obj = pdfplumber.open(doc_path)
page = pdf_obj.pages[page_no]
images_in_page = page.images
page_height = page.height
image_bbox = (image['x0'], page_height - image['y1'], image['x1'], page_height - image['y0'])
cropped_page = page.crop(image_bbox)
image_obj = cropped_page.to_image(resolution=400)
image_obj.save(path_to_save_image)