Convert PDF Textbooks to ePub

I need professional assistance to convert several PDF textbooks into high-quality ePub format.

Key Requirements:
- Primary format: ePub
- Content: Textbooks containing many diagrams and images
- Retain original layout, diagrams, and images

Ideal Skills:
- Expertise in PDF to ePub conversion
- Experience with complex formatting
- Attention to detail to maintain quality

Please provide a portfolio showcasing relevant experience.