PDF to Markdown

Why Convert PDF to Markdown

Markdown turns a fixed PDF into editable plain text with simple structure. It is easier to revise, compare in Git, publish in documentation systems, organize in note-taking apps, and use as source material for AI or retrieval workflows.

Best PDFs for Conversion

This tool works best with text-based PDFs: documents that contain selectable text rather than page images. Typical examples include files exported from Word, Google Docs, web browsers, LaTeX, and office applications. A quick check is to select a sentence in your PDF and paste it into a text editor. If it pastes as readable text, the PDF is usually a good candidate for conversion.

How Heading Detection Works

PDF files usually store text positions and font sizes, not semantic heading tags. The converter compares each line's font size with the typical body-text size on that page. A line that is noticeably larger is written as a Markdown heading, while ordinary-sized text is treated as paragraph content. This lightweight approach preserves useful structure for straightforward documents, but it cannot always infer a perfect H1–H3 hierarchy from visual styling alone.

Optional Page Separators

You can insert separators between pages to keep the original document boundaries visible in the Markdown file. This is useful when reviewing a long report, tracing a quote to a source page, creating research notes, or preparing page-aware content for an AI or RAG workflow.

What Is Preserved

The converter focuses on readable text and basic structure:

• Text and paragraphs: Extracted from the PDF's selectable text layer.
• Headings: Detected when text is noticeably larger than the page's normal body text.
• Page boundaries: Optionally represented with Markdown separators.
• Editable output: A standard .md file for text editors, Git repositories, note apps, and documentation workflows.

What Is Not Preserved

PDF is a visual page format, while Markdown is a lightweight text format. This version does not reconstruct tables as Markdown tables, export embedded images, preserve exact fonts and page styling, or reliably rebuild multi-column layouts. Treat the output as an editable starting point, particularly for complex reports, magazines, academic papers, and heavily designed documents.

Scanned PDF Limitation

Scanned PDFs often contain only page images and no selectable text layer. In that case, there is no text for the converter to extract. Run OCR first to create a searchable PDF, then use this tool to generate Markdown. OCR results may still need proofreading, especially for small text, poor scans, or complex layouts.

Common Use Cases

Use PDF to Markdown to:

• Move legacy reports or technical manuals into a Git-based documentation repository.
• Turn text-based PDFs into editable notes for Obsidian, Notion, or another Markdown app.
• Prepare document text for AI prompts, knowledge bases, search indexing, or RAG workflows.
• Extract a draft from a PDF before revising, republishing, or migrating its content.
• Convert articles, specifications, and internal documents into a more portable, version-friendly format.

Privacy

Everything runs locally in your browser using PDF.js and WebAssembly. Your PDF is never uploaded to a server, so you can process internal, private, or confidential text-based documents on your own device.