What it does
Markdown is a way to write headings, lists and tables with plain keys, the kind used in README files, notes apps and many text editors. This tool shows your Markdown as a finished page and lets you save it as a PDF, so a README, a report or a set of notes can be shared or printed.
Everything happens in your browser. Your text and pictures are never uploaded, and it keeps working with no internet once the page has loaded. To tidy the finished PDF, use organise PDF, or turn other files into PDF with file converter.
How to use it
- Type or paste Markdown on the left, or press Open a .md file.
- Check the preview. If you used pictures, press Add pictures and choose the files with the same names as in your text.
- Pick the page size, text size and margins. Tick Table of contents to add a list of headings at the start.
- Press Save as PDF (print). In the window that opens, choose Save as PDF as the printer, and turn off “Headers and footers”.
- Or press Download HTML to keep a web page version.
What each setting does
- Page size: A4, Letter, Legal or A5. It is passed to the print window.
- Text size: scales the body text; headings follow.
- Margins: the white space around the page.
- Table of contents: lists the headings with links, on its own first page.
- Add pictures: pictures are only shown when you choose the file here. Web addresses in
are not fetched, so opening a document never sends anything to another site.
Worked example
Typing # Report then - one and - two gives a large heading and a two-item bullet list. A table written as | Item | Qty |, a line of dashes, and | Pens | 3 | becomes a table with a shaded header row.
FAQs
Why does it use the print window? Your browser already makes accurate PDFs with selectable text, fonts and page breaks, so there is nothing to upload or install.
Which Markdown is supported? Headings, paragraphs, bold, italic, strikethrough, inline and fenced code, links, lists (also nested and task lists), block quotes, tables and horizontal lines. Raw HTML is shown as plain text for safety.
Why is my picture missing? Add the file with Add pictures; the name must match the one in the Markdown.
Where the numbers come from
- The Markdown reader is fibub's own small parser (common CommonMark and GitHub-style tables and task lists). The PDF is made by your browser's own print feature.
Standard scientific values, such as constants, atomic weights and melting points, are facts found in every textbook; we name where ours were checked. If you are an author or publisher and want a value, a credit or a table changed or removed, tell us and we will act quickly.
Last updated 2026-11-10.