PDF to Anki Flashcards via Markdown (Free Guide)

Making Anki cards from a PDF sounds simple until you try it. You select text from a chapter, paste it into the card editor, and get broken line wraps, hyphenated words split across lines, page numbers glued to sentences, and — if the PDF is a scan — nothing selectable at all. Anki is only as good as the text you feed it, and raw PDF text is a poor starting point.

The fix is to add one step: convert the PDF to Markdown first. Clean Markdown gives you readable, structured text you can turn into question-and-answer pairs quickly, whether you do it with an LLM, a command-line tool, or by hand. This guide walks through all three routes.

Why Markdown is the right middle step

Anki stores each card as fields — typically Front and Back — and renders them as HTML. It does not read Markdown natively. So why convert to Markdown at all? Because Markdown is the format that both humans and tools can work with cleanly:

It's readable text, not layout. Headings become ## lines, lists become bullets, and paragraphs join back together. That's exactly what you want to slice into cards.
Structure maps onto cards. A ### Term heading followed by a definition is a Front/Back pair waiting to happen. A bulleted list is a set of cloze deletions waiting to happen.
Every card tool speaks it. LLMs produce and consume Markdown fluently, and dedicated converters like mdanki take Markdown in and emit an Anki deck.

Markdown is the pivot format. Getting there is the hard part; everything after it is easy.

Step 1 — Convert the PDF to Markdown

Open the PDF to Markdown converter and drop your file in. Conversion runs locally in your browser — the file is never uploaded to a server, which matters when your source is a paid textbook, exam prep material, or your own lecture notes. If the PDF is a scan with no text layer, OCR runs automatically so you still get real, selectable text out.

Then read the result before you build a single card. Delete what won't become flashcards — cover pages, tables of contents, acknowledgements, reference lists — and confirm headings survived as ## and ### lines. Two clean minutes here saves you from memorizing garbled cards later. If you want a full cleanup checklist, see cleaning up Markdown after PDF conversion.

Step 2 — Turn Markdown into cards

Pick the route that matches how you work.

Route A — Let an LLM write the cards

This is the fastest way to go from a chapter to a deck. Paste your cleaned Markdown into ChatGPT or Claude and ask for cards in a format Anki can import:

Turn the following notes into Anki flashcards. Output as tab-separated values with two columns, Question and Answer, one card per line. Keep answers to one or two sentences. Make definition, cause-and-effect, and comparison cards where the text supports them.

[paste your Markdown]

Save the output as a .txt file and import it (see Step 3). LLMs handle Markdown far better than raw PDF text — clean structure is a big part of why LLMs work better with Markdown than PDF — so the conversion step directly improves the quality of the cards you get back. Always review the cards: LLMs occasionally invent or oversimplify, and you're the one who has to trust them at review time.

Route B — Use a Markdown-to-Anki tool

If you'd rather keep control and write the cards yourself, a converter like mdanki or markdown2anki turns a Markdown file into an .apkg deck you import in one click. You write cards using the tool's convention — often a heading for the front and the text beneath it for the back — and the tool preserves code blocks, images, and LaTeX math. This route shines for technical material: fenced code blocks become syntax-highlighted card backs, and $...$ math renders through Anki's built-in MathJax.

Route C — Route through Obsidian

If your notes already live in Obsidian, convert the PDF into your vault as Markdown and use the community Obsidian to Anki plugin. It scans your notes for question/answer patterns (or a regex you define) and pushes them straight into Anki through its connection add-on. This keeps one source of truth — your vault — and lets cards evolve as your notes do. The PDF to Markdown for Obsidian guide covers getting PDFs into a vault cleanly.

Which route to choose

	Route A: LLM	Route B: md-to-Anki tool	Route C: Obsidian plugin
Setup	None	Install a CLI	Install two plugins
Speed to first deck	Fastest	Medium	Medium
Control over wording	Low (review needed)	Full	Full
Handles code & math	Yes	Yes, best	Yes
Best for	Bulk cards from prose	Technical decks	Note-takers who review

Step 3 — Import into Anki

For text you generated yourself or via an LLM (Routes A and C-as-text):

In Anki, choose File → Import and select your .txt file.
Set the field separator to match your file — Tab if you asked for tab-separated values, comma for CSV.
Map column 1 to Front and column 2 to Back.
Tick Allow HTML in fields so any formatting renders instead of showing as literal tags.
Pick the target deck and note type, then import.

For .apkg files from Route B, just double-click the file or use File → Import — decks, note types, and media come bundled.

A few tips for cards that actually stick

One idea per card. If your Markdown has a bullet list of five points, make five cards, not one card with a five-item back.
Use cloze deletions for lists and definitions. Anki's cloze note type hides part of a sentence; it's ideal for "The three branches of government are {{c1::legislative}}, {{c2::executive}}, and {{c3::judicial}}."
Keep the source heading as a tag. Tagging cards by chapter makes it easy to suspend or study a section.
Front-load the question. "What does X do?" beats a wall of context — you want fast recall, not re-reading.

FAQ

Does Anki support Markdown directly?

Not in the card editor — Anki fields render HTML, not Markdown. That's exactly why converting your PDF to Markdown first helps: Markdown is the clean intermediate format that LLMs and tools like mdanki use to generate the cards, which then arrive in Anki as properly formatted HTML.

Can I make flashcards from a scanned PDF?

Yes. A scanned PDF is just images of pages with no selectable text, so you need OCR first. Converting the scanned PDF to Markdown runs OCR automatically and gives you real text you can turn into cards. Always proofread OCR output before memorizing it — a misread character becomes a wrong answer you'll drill for weeks.

Is it better to use an LLM or write cards by hand?

An LLM is faster and great for turning prose-heavy chapters into a first draft of a deck, but you must review every card. Writing cards yourself is slower but forces the kind of active engagement that helps you learn — many people find that drafting cards is itself half the studying. A common middle path is to let an LLM draft cards from the Markdown, then edit and prune before importing.

Will code blocks and math survive?

They can. Markdown-to-Anki tools preserve fenced code blocks as syntax-highlighted backs, and Anki renders LaTeX math through MathJax using $...$ or $...$ delimiters. Convert the PDF to Markdown cleanly first so the code and equations are intact before you build cards from them.

Is my PDF uploaded anywhere?

No. The PDF to Markdown conversion happens entirely in your browser — your textbook or notes never leave your device. Only the later steps (pasting text into an LLM, if you choose Route A) involve a third-party service, and that's your call to make per document.