website and a downloadable application

Avg Bid (EUR)
Project Budget (EUR)
€750 - €1500

Project Description:
I would like to build a website and a downloadable application similair to ( Viper Plagiarism Detector.

BID ONLY IF YOU KNOW 100% what you should do. I don't want bidders who take a project and don't have the slightest idea of what they should do.

BID and post a a full document on HOW you'll do this. The document should have at least the practical steps you want to follow.
A step by step workflow on how you'll going to resolve this.
Please be sure that you AVOID any google/microsoft/bing searching paying API. I DO NOT want to pay google/etc.
And to be fully compliant with the terms of service and rules of the search engine
The whole plagiarism detection must happen on the user side.

The most important thing is that the plagiarism detector to have the ability to save the documents on the server and LATER search them on the server side.

I want it to save the web pages that have been found as plagiarism and show it to the user with excerpts.
Also to calculate how much plagiarism is in a document. I'd like it to be able to show what exactly was plagiarated and from where.
THIS HAS TO BE SAVED FOR EACH DOCUMENT so the admin can see everything.

It should be able to compare doc,docx optionally (odt,pdf).

Code has to be documented and made available so we can modify it later.

Skills required:
MySQL, PHP, Software Architecture, Windows Desktop
About the employer:
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