TXT
TXT is plain UTF-8 text with no formatting, no fonts, no images — just characters. It is the most portable document format ever invented and works in every editor on every operating system. Use TXT when you need to extract the words from a PDF or DOCX for search, scripting, or LLM ingestion.
PDF
PDF (Portable Document Format) freezes a document’s exact layout so it looks identical on every device. It is the contract, invoice, eBook, and academic-paper format of record. PDFs can hold text, vector graphics, raster images, forms, and digital signatures — but editing them outside specialized tools is painful, which is why PDF-to-Word is one of the most-searched conversions.