Private PDF to Markdown

Where the conversion actually happens

When you choose a file, your browser reads its bytes straight from your disk and hands them to PDF.js, which parses the document inside a Web Worker belonging to this tab. The worker, its character maps and its font data are served from this site’s own domain rather than a CDN, so opening a document asks nothing of a third party. The converter on this page has no code that uploads a file — the Markdown is assembled in the same tab and is gone the moment you close it.

That is the short answer. The guide to how in-browser conversion works walks the same pipeline stage by stage, shows how to confirm the no-upload claim in your browser’s network tab, and is explicit about what this approach cannot do. If you are weighing this against other converters, seven of them are compared side by side, including the ones that upload.

What that means in practice

• There is no copy to delete. We never receive the document, so we have no storage to purge and no retention period to promise you.
• No sign-up. No account, no email address, no payment details — the converter runs for anyone who loads the page.
• The limits are checked on your device. Files up to 50 MB, and 30 pages per conversion — both checked in the browser before a byte is read. Nothing is measured on a server, because the server never sees the file.
• Scanned pages are the exception, and they are opt-in. A PDF that is only images has no text to extract. Recognising it needs a server, so it lives on its own page behind a consent step — this one will never send your file anywhere.