Azure Document Analysis - Pre-Built Invoice model

Question

Hi,

We are thinking to use Azure Document Intelligence pre built invoice model and one of our use case is we can have a single document with multiple different invoices pages with different invoice id's but the analysis output fields is extracting only last page invoice id but not the previous page invoice id's, what I'm looking for is treating each page as separate document share the results for multi page invoice document, may I know if that is possible?

Answer 1

Hi Maddu, Murali P. (TR Technology)

The Azure Document Intelligence prebuilt invoice model processes invoice and extracts key information, but it is designed to handle one invoice per page.

Here are some steps:

1. Please split the pdfs to single pages using a python library and train the model. 
2. Please use custom neural model for training.

import PyPDF2
 
def split_pdf(input_pdf_path, output_folder):
    # Open the input PDF file
    with open(input_pdf_path, 'rb') as input_pdf_file:
        # Read the PDF file
        reader = PyPDF2.PdfFileReader(input_pdf_file)
 
        # Loop through all the pages in the PDF
        for page_number in range(reader.getNumPages()):
            # Create a new PDF writer
            writer = PyPDF2.PdfFileWriter()
 
            # Add the current page to the writer
            writer.addPage(reader.getPage(page_number))
 
            # Create the output PDF file path
            output_pdf_path = f'{output_folder}/page_{page_number + 1}.pdf'
 
            # Write the single-page PDF to the output file
            with open(output_pdf_path, 'wb') as output_pdf_file:
                writer.write(output_pdf_file)
 
            print(f'Saved: {output_pdf_path}')
 
# Usage example
input_pdf_path = 'C:/Users/v-manmohanty/Downloads/sample-pdf-files-sample3.pdf'
output_folder = 'C:/Users/v-manmohanty/Documents/Doctest'
split_pdf(input_pdf_path, output_folder)

Thank You.