Open-Source AI · Document AI & OCR

Surya vs PDF to MD Converter

Surya vs PDF to MD Converter compared for 2026 — features, license, ease of use, performance and which one to choose. Modern OCR with layout detection vs Turn a text-layer PDF into Markdown without uploading it.

Updated regularly · curated by olud.ai

Choose Surya for developers who need OCR beyond plain text. Choose PDF to MD Converter for anyone needing a text-layer PDF as Markdown without installing or uploading it.

Surya vs PDF to MD Converter at a glance

SpecSuryaPDF to MD Converter
CategoryDocument AI & OCRDocument AI & OCR
TypeOCR toolkitHosted PDF-to-Markdown converter
LicenseGPL-3.0Proprietary
Runs locallyYesPartial
Primary languagePython—
Ease of useIntermediateBeginner
Best fordevelopers who need OCR beyond plain textanyone needing a text-layer PDF as Markdown without installing or uploading it
GitHub stars——

How Surya and PDF to MD Converter score

🏆 Overall edge: Surya — 4.0 vs 3.3 / 5
CriterionSuryaPDF to MD Converter
Popularityn/an/a
Maintenancen/an/a
Ease of use3.55.0
Privacy5.03.5
License freedom3.51.5

Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.

What each one is

Surya

OCR toolkit · GPL-3.0

Surya is a modern OCR toolkit providing text recognition in 90+ languages plus layout analysis, reading order and table detection.

  • 90+ languages with strong accuracy
  • Layout, reading order and table detection
  • Runs locally on modest GPUs
Visit Surya →

PDF to MD Converter

Hosted PDF-to-Markdown converter · Proprietary

A hosted web page that turns text-layer PDFs into Markdown in the browser tab using Mozilla's pdf.js: drop a file, preview, then copy or download the .md. Reverse conversion and a Batch page are also linked. Closed source, free to try, no pricing page. Note before using it: the "nothing is uploaded" claim covers the homepage workspace only, not the linked Batch page, and there is no OCR, so image-only scans come out empty.

  • Conversion runs in the browser tab with Mozilla's pdf.js
  • No account, and the page states nothing is sent to its servers
  • Keeps headings, paragraphs, lists, simple tables and code blocks
Visit PDF to MD Converter →

Key differences

Surya is oCR toolkit, while PDF to MD Converter is hosted PDF-to-Markdown converter. Their licenses differ (GPL-3.0 vs Proprietary), which matters if you ship a commercial product. Surya leans more intermediate-friendly, whereas PDF to MD Converter is more suited to beginner users. They also differ in how they run (Yes vs Partial). In short, Surya fits developers who need OCR beyond plain text, and PDF to MD Converter fits anyone needing a text-layer PDF as Markdown without installing or uploading it.

Which should you choose?

Choose Surya for developers who need OCR beyond plain text. Choose PDF to MD Converter for anyone needing a text-layer PDF as Markdown without installing or uploading it.

There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.

Frequently asked questions

Is Surya or PDF to MD Converter easier to use?

PDF to MD Converter is generally the easier of the two to get started with, while Surya rewards more setup with more control.

Are Surya and PDF to MD Converter free?

Surya is free and open source (GPL-3.0), and PDF to MD Converter is free to use but closed source. Neither charges for the core software.

Can I run Surya and PDF to MD Converter locally?

Surya: yes · PDF to MD Converter: partial. Both can be used without sending your data to a third-party cloud where their setup allows.

Surya vs PDF to MD Converter — which should I pick in 2026?

Choose Surya for developers who need OCR beyond plain text. Choose PDF to MD Converter for anyone needing a text-layer PDF as Markdown without installing or uploading it.

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