Convert a PDF into another format, or turn another file into a PDF. This is the general entry point: pick the source and target formats and it routes to the right converter. Document formats such as Word and presentations go through LibreOffice on the server, so the fidelity you get is the fidelity LibreOffice manages on that file.
Turning a web page into a PDF and need JavaScript and full CSS honoured? Try the browser-engine HTML to PDF converter on coontool.com
From PDF: Word, images, plain text, CSV, HTML, Markdown, XML, EPUB, presentations and PDF/A. Into PDF: images, SVG, HTML, Markdown, email messages, CBZ comic archives and office documents - Word, Excel, PowerPoint and the OpenDocument equivalents, which go through LibreOffice.
PDF describes where marks sit on a page; Word describes flowing paragraphs. Rebuilding the second from the first is an approximation, and complex multi-column layouts and unusual fonts are where it shows most.
Not directly, because a scan holds no text. Run OCR PDF first to add a text layer, then convert.
Files are uploaded over an encrypted connection and processed on CoonTool's own server, not in your browser. The working copy is deleted automatically once the job is done, and in any case within 24 hours. Nothing is stored permanently and no account is required.