Freelance Developer Needed – Build Mac App to Generate Unlimited PDFs from Excel

I'm looking for a developer to build a simple macOS desktop application that automates creating individual PDFs from an Excel spreadsheet. Overview I have: - A fillable PDF template (Adobe Acrobat) - An Excel spreadsheet containing approximately 300 rows of data I need: - One completed PDF generated for each row in the spreadsheet - Each PDF saved as an individual file - Automatic file naming based on Excel columns - A simple application that runs locally on my Mac Desired Workflow: - Open the application. - Select or drag in an Excel (.xlsx or .csv) file. - Select or drag in a fillable PDF template. - Choose an output folder. - Click Generate PDFs. - The application creates one PDF for each row in the spreadsheet and saves all files automatically. Features: - Native macOS application - Works offline - Batch generation of 300–1,000+ PDFs - Field mapping between Excel columns and PDF fields - Ability to save the field mapping so future imports require little or no setup - Automatic file naming using Excel values (for example: LastName_FirstName.pdf) - Progress bar while generating PDFs - Error log showing any records that failed Nice-to-Have Features: - Save multiple PDF templates - Remember previous settings - Generate multiple different PDF templates from the same spreadsheet - Organize output into folders by school or district - Merge multiple PDFs for each student if needed Deliverables: - Fully working macOS application - Source code - Installation instructions - Documentation explaining how to update field mappings - Commercial rights transferred to me - Technical Preferences Open to any appropriate technology (Python, Swift, Electron, etc.) as long as the application runs reliably on macOS without requiring a subscription or cloud service. Please provide: - Estimated fixed-price quote - Estimated timeline - Examples of similar automation or PDF generation projects you've completed