Promote & Enhance Online Credit Note Maker Tool

I need a freelancer to promote and market our free online tool "Credit Note Maker" (https://docmak.com/tools/credit-note-maker) and further improve its user experience. Scope of work: (1) Promotion - outreach... (Budget: ₹1500 - ₹12500 INR, Jobs: Content Marketing, Digital Marketing, Internet Marketing, PHP, SEO, Social Media Marketing, User Experience Research, User Interface / IA, Website Design, Website Optimization)