PDF to Markdown Comparisons

Compare pdfToMarkdown with document parsing APIs, OCR tools, and open-source PDF-to-Markdown projects.

Choose based on where documents may be processed, the output your pipeline needs, and whether your hardest pages contain equations, tables, scans, or multiple languages.

Every competitor claim below is summarized from the linked, dated comparison post. “Not evaluated” means we did not test or document that capability in the source.

Decision table comparing PDF parsing and OCR tools
ToolBest forPricing modelTable handlingScanned + CJKTry it
LlamaParseSource: January 28, 2025LlamaIndex and LlamaCloud workflows; instruction-following extraction.Account and API key; credits-based plans. The dated review records a 1,000-pages/day free tier.Markdown output; instructions can target financial tables.VLM-based layout parsing; CJK was not evaluated in the source comparison.Create an account and API key.Read source →
UnstructuredSource: updated July 20, 2026Local, multi-format parsing with typed elements and element-level control.Open source when self-hosted; optional hosted API with per-page billing.Returns Table elements; hi_res can expose HTML, but Markdown conversion is your step.Scans need hi_res or ocr_only; the source does not benchmark Unstructured end to end on CJK.Install locally or use its hosted API.Read source →
MathpixSource: January 22, 2025Scientific papers, equations, handwritten math, and LaTeX-focused workflows.Per-page credits and a limited trial in the dated review; account and card required for API use.MMD and LaTeX-aware Markdown; table-specific behavior was not evaluated in the source comparison.Not evaluated in the source comparison.Use the limited trial.Read source →
TesseractSource: March 2, 2025Offline OCR on clean, single-language scans and resource-constrained systems.Free, open source, and self-hosted.Extracts flat text; column relationships need reconstruction.Handles scans; each expected language needs an installed language pack.Install and run locally.Read source →
pdfToMarkdownSource: March 2, 2025Hosted PDF-to-Markdown for RAG, search, rendering, and custom stacks.Shared demo key with no signup; 100 pages/month after GitHub login in the dated review.Escaped GFM for simple rectangular tables; sanitized HTML for complex structure.Handles scanned and multilingual PDFs without selecting language packs.Public demo key; no account.Read source →

Try the no-signup demo

The public demo_public_key needs no account and converts page 1.

curl -X POST https://pdftomarkdown.dev/v1/convert \
  -H "Authorization: Bearer demo_public_key" \
  -H "Content-Type: application/json" \
  -d '{"input":{"pdf_url":"https://pdftomarkdown.dev/samples/invoice.pdf"}}'

Which should you pick?

  • Use pdfToMarkdown when you want a small REST API that returns Markdown directly.
  • Use local tools when documents cannot leave your infrastructure.
  • Use Mathpix when scientific equations and LaTeX fidelity are the core requirement.
  • Use broader document AI platforms when you need many file formats, enterprise controls, or custom extraction schemas.

For a narrower retrieval workflow comparison, read pdfToMarkdown vs LlamaParse for RAG.