PDF to ePub Conversion

I need a PDF file converted into an ePub format. The output should include both text and images, and the formatting in the ePub file should be simplified for better readability. The eBook doesn't need to be specifically tailored for any eReader device.
Project Details
Project Name: PDF to ePub conversion
Total Volume: 45 Lakh Pages
Duration of Project: Long Term

Reference Sample: https://drive.google.com/drive/folders/166FDSLA2GJXjdsZUR4IRwGPTl49eKhs7
Approved Sample:
https://drive.google.com/drive/u/7/folders/11v6lra0iROHV--B7unkaBwU6ZkAhqGw4

Epub testing Tool
https://drive.google.com/drive/folders/10j7_SXhy4FTdEF8YZNPK-l5OUVRWL_6x?usp=drive_link


File For Work

1. https://drive.google.com/file/d/10fgJBtGSKHNMKCfB4Vx5_LUkmQZKYfgQ/view?usp=sharing(391 pages )
2. https://drive.google.com/file/d/1w_GmTnx6tap7dJb3T1LXl0w3CJBAKXsa/view?usp=drive_link(285 pages )

Instruction for Work
1. Analyse the Approved sample
2. Complete the any one given file.

Payment Terms:
The freelancer will need to complete one file. Upon submission of the file by the freelancer, 40% payment will be made. Following this, the quality team will review the file, which may take 2 to 3 days. If the file is correct as per quality standards, complete payment will be made. If there is any feedback, the freelancer will need to address it."