Word-PDF Converter with Spell-Highlight

I need a small utility that will take a DOCX file, run an English-only spell check, visually highlight every misspelled word—without changing the original text—and then export the result straight to PDF... (Budget: ₹750 - ₹1550 INR, Jobs: C# Programming, Desktop Application, Excel, PDF, Python, Software Architecture, Software Development, Visual Basic)