Mermaid diagram to PDF converter
Write flowcharts, sequence diagrams and more as text in a Markdown file, and get a PDF where they are drawn as real diagrams.
How to use the Mermaid to PDF converter
- Paste your Markdown with a mermaid code block.
- Choose PDF and convert.
- Download the PDF with your diagrams drawn inside it.
What stays intact
- Flowcharts and sequence diagrams
- Class, state, pie and Gantt charts
- Diagrams scaled to fit the page
- The text around your diagrams
- A text copy of any diagram that cannot be drawn
About the Mermaid to PDF converter
How to write a diagram
Start a code block with three backticks followed by the word mermaid, write your diagram on the lines below, and close the block with three backticks. For example, a line reading A --> B inside a flowchart block draws an arrow between two boxes.
Where the drawing happens
Diagrams are drawn in your own browser before the file is sent, because drawing needs a browser engine. The finished pictures are then placed in the PDF at the right position, with the headings around them kept together on the same page.
If a diagram has a mistake
A diagram with a syntax error is kept as a code block in the PDF and you see a warning, so one typo never stops the rest of the document converting.
Large diagrams
A diagram taller than a page is scaled down to fit, so it is never cut off. Choose A4 or US Letter before converting.
Frequently asked questions
- Which diagram types work?
- Flowcharts, sequence diagrams, class diagrams, state diagrams, pie charts, Gantt charts and the other common Mermaid types.
- Why is my diagram shown as code?
- Its syntax has an error, so it could not be drawn. The code is kept in the PDF and a warning appears so you can fix it.
- Is my diagram sent anywhere to be drawn?
- No. It is drawn in your browser, and the finished picture is sent with your document only to create the PDF.