"Python Atomation : Crack 4 digit numeric Pdf password using sequence and random methods"

install and import pikepdf and tqdm libraries:

pip install pikepdf tqdm 

import pikepdf 
import tqdm 
from datetime import datetime
import time

• Sequence Method :

Declare important variable

must be change the variable values according to your need

 start_time = datetime.now()
# Set the range for passwords
password_range = (1000, 9999+1)

# Specify the PDF file path
pdf_file_path = "PDF-protected.pdf"

For loop that is starting from 1000 to 10000 check password inbetween those number

also write a right password in file

for password_to_find in tqdm(range(password_range[0], password_range[1] + 1), desc="Decrypting PDF", unit="password"):
    try:
        # open PDF file
        with pikepdf.open(pdf_file_path, password=str(password_to_find)) as pdf:
            # Password decrypted successfully, break out of the loop
            print("[+] Password found:", password_to_find)
            with open('ps_found_sequence.txt', 'w') as file:
              file.write(str(password_to_find))
            break
    except pikepdf._core.PasswordError as e:
        # wrong password, just continue in the loop
        print("[-] Incorrect password:", password_to_find)
        continue

end_time = datetime.now()

# Calculate the elapsed time
elapsed_time = end_time - start_time

# Print the start and end times, as well as the elapsed time
print("Start Time:", start_time.strftime("%H:%M:%S"))
print("End Time:", end_time.strftime("%H:%M:%S"))
print("Elapsed Time:", str(elapsed_time))

• Random Method :

Declare important variable

must be change the variable values according to your need

start_time = datetime.now()

# Set the range for random passwords
password_range = (1000, 9999+1)

# Specify the PDF file path
pdf_file_path = "PDF-protected.pdf"

For loop that is starting from 1000 to 10000 and check random password inbetween those number

also write a right password in file

while True:
    # Generate a random password within the specified range
    password_to_find = random.randint(*password_range)

    # Use tqdm with a range of 1 to show progress (1 iteration for trying one password)
    for _ in tqdm(range(1), desc="Decrypting PDF", unit="password"):
        try:
            # open PDF file
            with pikepdf.open(pdf_file_path, password=str(password_to_find)) as pdf:
                # Password decrypted successfully, break out of the loop
                print("[+] Password found:", password_to_find)
                with open('pssp_found.txt', 'w') as file:
                  file.write(str(password_to_find))
                break
            
        except pikepdf._core.PasswordError as e:
            # wrong password, just continue in the loop
            print("[-] Incorrect password:", password_to_find)
            continue

end_time = datetime.now()

# Calculate the elapsed time
elapsed_time = end_time - start_time

# Print the start and end times, as well as the elapsed time
print("Start Time:", start_time.strftime("%H:%M:%S"))
print("End Time:", end_time.strftime("%H:%M:%S"))
print("Elapsed Time:", str(elapsed_time))