[1117] Remove some pages from a PDF while preserving the bookmarks

To remove the last page from a PDF while preserving the bookmarks, you can use the PyMuPDF library (fitz package) instead of PyPDF2, as PyMuPDF provides better support for handling bookmarks. Here’s how you can do it:

1. Install PyMuPDF:

   pip install PyMuPDF

2. Import the necessary library:

   import fitz  # PyMuPDF

3. Remove the last page while keeping the bookmarks:

   def remove_last_page_keep_bookmarks(input_pdf_path, output_pdf_path):
       # Open the original PDF
       pdf_document = fitz.open(input_pdf_path)
       
       # Remove the last page
       pdf_document.delete_page(pdf_document.page_count - 1)
       
       # Save the modified PDF to a new file
       pdf_document.save(output_pdf_path)
    
   # Example usage
   input_pdf_path = 'path/to/your/input.pdf'
   output_pdf_path = 'path/to/your/output.pdf'
   remove_last_page_keep_bookmarks(input_pdf_path, output_pdf_path)

Explanation:

1. Install PyMuPDF:

   pip install PyMuPDF

   This command installs the PyMuPDF library.

2. Import the necessary library:

   import fitz  # PyMuPDF

   This import brings in the fitz module from the PyMuPDF library.

3. Remove the last page while keeping the bookmarks:

   def remove_last_page_keep_bookmarks(input_pdf_path, output_pdf_path):
       pdf_document = fitz.open(input_pdf_path)
       pdf_document.delete_page(pdf_document.page_count - 1)
       pdf_document.save(output_pdf_path)

   • fitz.open(): Opens the original PDF file.
   • delete_page(): Deletes the last page from the PDF (the index is page_count - 1 because the pages are 0-indexed).
   • save(): Saves the modified PDF to a new file, preserving the existing bookmarks.

Example: Remove the last page

import fitz  # PyMuPDF
 
def remove_last_page_keep_bookmarks(input_pdf_path, output_pdf_path):
    # Open the original PDF
    pdf_document = fitz.open(input_pdf_path)
    
    # Remove the last page
    pdf_document.delete_page(pdf_document.page_count - 1)
    
    # Save the modified PDF to a new file
    pdf_document.save(output_pdf_path)
 
# Example usage
input_pdf_path = 'path/to/your/input.pdf'
output_pdf_path = 'path/to/your/output.pdf'
remove_last_page_keep_bookmarks(input_pdf_path, output_pdf_path)

Example: Rmove the last four pages

import fitz  # PyMuPDF
 
def remove_last_page_keep_bookmarks(input_pdf_path, output_pdf_path):
    # Open the original PDF
    pdf_document = fitz.open(input_pdf_path)
    
    # Remove the last four pages
    for _ in range(4):
        pdf_document.delete_page(pdf_document.page_count - 1)
    
    # Save the modified PDF to a new file
    pdf_document.save(output_pdf_path)
 
# Example usage
input_pdf_path = 'path/to/your/input.pdf'
output_pdf_path = 'path/to/your/output.pdf'
remove_last_page_keep_bookmarks(input_pdf_path, output_pdf_path)

This code will remove the last page from the specified PDF file while preserving the existing bookmarks.

If you have any further questions or need additional assistance, feel free to ask! 😊