LCP Removal Script

Requirements

Before running the script, ensure you have the necessary dependencies installed. You can do so by running:

pip install pycryptodome lxml

You can also use a virtual environment (recomended)

python -m venv .venv
.venv/bin/python -m pip install --upgrade pip
.venv/bin/python -m pip install pycryptodome lxml

Instructions

Books (epub)

1. Open the .lcpl file in Thorium Reader:
   Thorium is a free ebook reader that supports LCP-protected files. You can download it from the official website.

2. Export the ebook as an .epub file:

   • In Thorium Reader, right-click on the book you want to decrypt.
   • Select the option to export it as an .epub file (LCP protected).

3. Run the decryption script:
   Use the following command to decrypt the .epub file:

   python lcp-epub.py -key <your_passphrase_key> <path_to_epub_file>
   

   or with a virtual environment (recomended)

   .venv/bin/python lcp-epub.py -key <your_passphrase_key> <path_to_epub_file>
   

   Replace <your_passphrase_key> with the passphrase you received when purchasing or borrowing the ebook, and <path_to_ebook_file> with the path to the .epub file.

Audiobooks

1. Open the .lcpl file in Thorium Reader:
   Thorium is a free ebook reader that supports LCP-protected files. You can download it from the official website.

2. Export the ebook as an .lcpa file:

   • In Thorium Reader, right-click on the book you want to decrypt.
   • Select the option to export it as an .lcpa file (LCP archive).

3. Run the decryption script:
   Use the following command to decrypt the .lcpa file:

   python lcpa-audiobook.py -key <your_passphrase_key> <path_to_lcpa_file>
   

   or with a virtual environment (recomended)

   .venv/bin/python lcpa-audiobook.py -key <your_passphrase_key> <path_to_lcpa_file>
   

   Replace <your_passphrase_key> with the passphrase you received when purchasing or borrowing the ebook, and <path_to_ebook_file> with the path to the .lcpa file.

4. Access the decrypted files:
   Once the script runs successfully, all decrypted content will be saved in a new folder created in the same directory as the .lcpa file.

   • If the .lcpa file contains an image file (such as .jpg, .jpeg, or .png) for an audiobook, the image will automatically be copied to the output folder.

Notes

• This script has been tested on both Windows and Linux.
• Although Thorium is used here as an example for exporting LCP-protected audiobooks and ebooks, any LCP-compatible software with export functionality can be used.