Every time you drop a PDF or Word doc into a model, you pay tokens for formatting it never reasons over. Layout, styling, table scaffolding. None of it earns its place in the context window. So I built to-md. It turns .pdf, .docx, .pptx and .xlsx into Markdown, and writes two files: a faithful one, and a lean one stripped to the minimal text. The lean file is the one you paste in. One engine, three ways in: a command line tool, a Finder right-click action (Adds the path of the lean file to your clipboard too), and a Claude Code skill that fires the moment you hand it a document. The principle underneath it: the model should only read what it has to think about. The rest is waste you are paying for. Pre-process the document. Then prompt. //A<3