PDF tools
PDF to Markdown for ChatGPT, Claude & RAG
LLMs read Markdown far better than they read PDFs. Convert your document once — headings, paragraphs and genuine Markdown tables — and give ChatGPT, Claude or your RAG pipeline structured context instead of a wall of extracted text.
Choose a PDF (or CSV, Excel — up to 5 MB)
Tables the model can read
A Markdown table keeps rows and columns explicit, so the model answers questions about cells correctly.
Chunks cleanly for RAG
Headings and rows are natural chunk boundaries — retrieval stays coherent instead of splitting mid-thought.
No PDF noise
Layout artefacts and page-break characters are stripped before they waste context tokens.
How it works
- 1Upload your PDF.
- 2We convert it to clean, LLM-friendly Markdown.
- 3Paste it into ChatGPT or Claude — or download the .md and index it for RAG.
What you download: A .md file you can paste straight into a chat, attach, or chunk into a vector store. Tables are real Markdown tables, so the model reads rows and columns correctly instead of guessing at whitespace.
Why LLMs do better with Markdown than PDFs
When you hand a model a PDF, something first flattens it to text — and that something usually destroys tables, drops reading order across columns, and injects page furniture into the middle of sentences. The model then reasons over damaged input. Markdown fixes the input: structure is explicit in the syntax, so headings scope the content and every table cell has an unambiguous row and column. Same document, cleaner signal.
Preparing PDFs for a RAG pipeline
Retrieval quality is set at chunking time. Markdown gives you natural boundaries — split on headings for prose, on rows for tables — so each chunk is self-contained and retrievable on its own. Index the .md into your vector store as-is, or pair it with the JSON download when you also want the table as structured records.
Works with ChatGPT, Claude, Gemini and local models
Markdown is the one format every assistant reads natively — paste it into a chat, drop it in a system prompt, or feed it through an API. For very long documents, paste section by section using the headings as seams; the structure you kept is what makes that possible.
What about scanned PDFs?
Digital PDFs with a real text layer give exact results — we read the document's own characters and coordinates, not a picture of them. If you upload a pure scan with no selectable text, we detect it and tell you honestly instead of returning garbage rows.
Free converter
Convert your statement — and understand it too
A free account converts a statement page every day to CSV, Excel, QIF or OFX — with every transaction matched to a real merchant name, not a cryptic descriptor. No card required; files deleted after 24 hours.
No bank logins · card numbers redacted before storage · everything deleted after 24 hours
Questions
›Why not just upload the PDF to ChatGPT directly?
PDF-to-text flattening inside chat tools loses table structure and injects layout noise. Converting to Markdown first gives the model clean headings and real tables — which shows up directly in answer quality.
›Is Markdown good for RAG chunking?
Yes — split on headings and table rows and each chunk stays self-contained, which keeps retrieval coherent.
›Does this work for Claude and Gemini too?
Yes — every major assistant reads Markdown natively; nothing here is ChatGPT-specific.
›How do I use the output?
Preview it on screen, copy-paste straight into a chat, or download the .md and index it into your vector store.
›Any document size limits?
Large documents work; very large files may be capped on the free plan — you'll be told clearly if so.
›Is my document stored?
Files are never stored — the original is deleted within 24 hours, parsed data follows your plan's retention window, and you can delete everything instantly. Card and account numbers are redacted before anything is saved.
More PDF tools
- Extract a table from a PDF
- Convert PDF to Excel
- Convert PDF to CSV
- Convert PDF to JSON
- Convert PDF to Markdown
- Convert an Invoice to Excel
- Convert an Invoice to CSV
- Convert Receipts to a Spreadsheet
- Convert a Purchase Order to Excel
- Convert Remittance Advice to CSV
Converting a bank statement instead? Use the bank statement converter — it adds merchant names, categories and reconciliation.