Django Plagiarism Checker Tool Development

I need a comprehensive plagiarism checker tool, built with Django and featuring a professional front-end using HTML, CSS, and JavaScript.
Key Requirements:
- Full code ownership and authority
- Plagiarism detection from both online sources and our database
- Support for single document checks and two-document comparisons
- Text box for users to paste paragraphs for plagiarism checking
- Support for various document types: text files, PDF files, Word documents, and images (with text extraction)
Ideal Skills and Experience:
- Proficiency in Django and full-stack development
- Strong front-end development skills
- Previous work on similar plagiarism detection tools would be a plus
Please provide a portfolio showcasing relevant experience. Looking forward to your bids!