Asp.Net PDF Editing Tool

I need a tool developed using ASP.Net for back-end and WinForms (C# .Net) for front-end. This tool will allow users to log in, edit PDF files by splitting and reorganizing pages, and upload the modified files.

Key Requirements:
- User Authentication: Secure login for users.
- PDF Manipulation: Split and reorganize pages within PDF documents.
- Upload Functionality: Users should be able to upload edited PDFs.

Ideal Skills:
- Proficient in ASP.Net and C# .Net
- Experience with PDF manipulation
- Strong background in developing secure authentication systems
- Familiarity with WinForms