Scripting to remove part of image in PDF that belongs a text, just taking of the last 20 pixels of image.

remover.py

import PyPDF2
import sys
import os


def remover(target, file_name):
    print(f"!Removing assinature of \"{target}\" from {file_name}")
    try:
        pdf_file = open(file_name,'rb')
    except:
        print(f"{file_name} : Error to load it")
        return

    pdf_reader = PyPDF2.PdfReader(pdf_file)

    pdf_writer = PyPDF2.PdfWriter()

    for page_num in range(len(pdf_reader.pages)):
        page = pdf_reader.pages[page_num]

        if target in page.extract_text():
            # Setting the cropbox for botton side of page with 20 of height
            page.mediabox.lower_left = (0, 20)
            # cropping the page based on the previous setting
            page.cropbox.upper_right = (page.mediabox.left, page.mediabox.right)

        pdf_writer.add_page(page)
    with open("_"+file_name,'wb') as output_file:
        pdf_writer.write(output_file)

    print(f">>> DONE \"{file_name}\" save as \"_{file_name}\"")



#################################
print(f"Thank you for choice our services.")

target = None
for i in sys.argv[1:]:
    if not os.path.isfile(i):
        target = str(i)

if target is None:
    print("Target string not defined")
else:
    for item in sys.argv[1:]:
        print(80*"-")
        if os.path.isfile(item):
            remover(target, item)