Back to Converter

PDF Code Block Detection

Automatically identifies code snippets in your PDFs and wraps them in proper Markdown fencing, so your technical content stays technical.

Try Code Detection

How It Works

1

Detect monospace text

Every text element's font family is checked. Monospace fonts indicate code.

2

Group into blocks

Consecutive monospace lines are merged into a single coherent code block.

3

Add Markdown fencing

Each block is wrapped with triple backticks, producing paste-ready Markdown code.

What Makes It Useful

Monospace detection

Identifies code by font family analysis. Monospace text is flagged as code.

Block grouping

Adjacent code lines are joined into a single clean fenced block.

Indentation preserved

Original whitespace and indentation is kept intact inside every code block.

Language hints

Recognizes common language patterns to suggest identifiers like python or js.

Perfect For

CS textbooks

Extract code examples cleanly from programming textbooks and lecture notes.

Technical docs

Convert API documentation with code samples into Markdown without losing formatting.

Tutorial PDFs

Pull out code snippets from PDF tutorials for reuse, study, or reference.

Related features

Batch Conversion·Header Detection·List Detection

Convert PDFs with Code, Cleanly

Upload a technical PDF and see code blocks extracted and fenced automatically.

Start Converting