While building pdfmarkdown.app, I learned that extracting the words is usually the easy part.
The difficult cases are multi-column reading order, dense tables, formulas, images with captions, scanned pages, and documents that mix different languages. A conversion can look fine at first glance while quietly changing the meaning of a table or putting paragraphs in the wrong order.
Turn PDFs into AI-ready Markdown without uploading your files to a server. Tables, formulas, and images stay usable, while a side-by-side view lets you check the output against the original before trusting it. It also handles scanned and encrypted PDFs. Free, no signup, and everything runs in your browser.
