Building a Free Online PDF Converter with Next.js: What I Learned (opens in new tab)

PDF files are everywhere. Developers, students, businesses, and creators use them every day for documents, reports, invoices, and forms. However, working with PDFs on the web is not always simple. Many users still need to download software just to convert a file from PDF to Word, JPG, or another format. I wanted to solve this problem by building a free online PDF converter that works directly in the browser. The goal was simple: Create a fast, easy-to-use tool where users can upload a PDF, co...