This python program allows the user to unlock or lock several PDFs in one click. It uses a configuration file to set where the original PDFs are, where the locked/unlocked PDFs will be saved and the password. This program reads the config.txt file or uses the command line configuration. In the config.txt file is used, the first line of config.txt is the name of the source folder where the original PDFs are, the second line is the name of the destination folder where the locked/unlocked PDFs will be saved and the third line is the password. The default names are "Original PDF", "Modified PDF" and "password". Next, a folder named "Modified PDF" will be created if it doesn't already exist. Finally, the program prints out the number of PDF unlocked.

• Python
• Pikepdf library
• Os library
• Argparse

Open a command window and type pip install pikepdf

Open config.txt file and change the lines using a text editor. The first line is the name of the source folder where the original PDFs are, by default is "Original PDF". The second line is the name of the destination folder where the locked/unlocked PDFs will be saved, by default is "Modified PDF". The third line is the password, by default is "password".

Create a new folder called "Original PDF" or with the same name as the first line of the file config.txt and copy the PDF files you want to lock/unlock.

usage: main.py [-h] [-f | -c] [-l | -u]

Lock or unlock your PDF

optional arguments:
  -h, --help          show this help message and exit
  -f, --file          Use the configuration file
  -c, --command_line  Configure the cript using the command line
  -l, --lock          Lock your PDF(s) with password
  -u, --unlock        Unlock your PDF(s)

You can either use the configuration file config.txt (using argument -f or --file) or the command line option (using argument -c or --command_line), moreover you can lock your PDF(s) (using argument -l or --lock) or unlock your PDF(s) (using argument -u or --unlock).

• If you want to use the configuration file config.txt and lock your PDF(s), open the Command Prompt as Administrator and type python .\main.py -f -l.

• If you want to use the configuration file config.txt and unlock your PDF(s), open the Command Prompt and type python .\main.py -f -u.

• If you want to use the command line and lock your PDF(s), open the Command Prompt as Administrator and type python .\main.py -c -l. Next, the command window will show you

Insert source folder name:
Insert destination folder folder name:
Insert password:

• If you want to use the command line and unlock your PDF(s), open the Command Prompt and type python .\main.py -c -u. Next, the command window will show you

Insert source folder name:
Insert destination folder folder name:
Insert password: