What Is Document Intelligence?
Mix (17 tools)
- License: 9 open source · 8 proprietary
- Hosting: 9 self-hosted · 7 SaaS · 1 both
Document intelligence is the layer between a raw scanned page (PDF, image, scan, photo of a form) and the structured data downstream systems need: searchable text, machine-readable tables, key-value pairs, and natural-reading-order markdown suitable for ingestion by an LLM or RAG pipeline.
The category fuses three previously-separate disciplines:
- OCR (optical character recognition) – convert pixels to characters; the classic problem solved by Tesseract since the 1980s
- Layout analysis – detect headers, footers, columns, tables, figures, captions, and reading order so the extracted text is structured, not a wall of noise
- Document understanding – recognize forms, invoices, receipts, equations, handwriting, and produce key-value or schema-bound outputs
Modern document-intelligence tools combine all three using vision-language models (VLMs) and specialised layout / OCR / table-recognition sub-models. The output is typically Markdown, HTML, or JSON suitable for an LLM.
About this data & disclaimer
The information on these pages was researched by a combination of human review and large language models. This catalogue serves as a reference for the resources, applications, devices, deployment payloads, and other components that the ResorsIT platform integrates, deploys, and manages. To suggest an addition or correction, please contact us. Prepared by Rhodium Systems Inc., author of the ResorsIT platform — a unified IT operations management platform for IT teams and MSPs that integrates a curated suite of open-source, commercial, and SaaS applications into a single system with shared identity, single sign-on, access control, and a common audit trail. This information is compiled on a best-effort basis: it may be incomplete, contain errors, and become out of date as tools, vendors, licences, and features change. Use this catalogue only as a starting point for your own research, and independently verify and review any tool carefully against your own requirements before relying on it.
Comparison
This page compares the 17 document-intelligence tools evaluated in this category across the dimensions that matter most when choosing one.
Quick Reference
| Tool | Origin | Code Licence | Model Licence | Self-Host? | Hosted? |
|---|---|---|---|---|---|
| Marker | Datalab | GPL-3.0 | OpenRAIL-M (revenue cap) | Yes | Yes |
| Surya | Datalab | GPL-3.0 | OpenRAIL-M (revenue cap) | Yes | (via Marker) |
| Chandra | Datalab | Apache 2.0 | OpenRAIL-M (revenue cap) | Yes | Yes |
| Docling | IBM / LF AI | MIT | Per model | Yes | (community) |
| olmOCR | Allen AI | Apache 2.0 | Apache 2.0 | Yes | Demo only |
| Tesseract | Community / Google | Apache 2.0 | n/a | Yes | No |
| PaddleOCR | Baidu | Apache 2.0 | n/a | Yes | No |
| Unstructured | Unstructured-IO | Apache 2.0 (CE) | n/a | Yes (CE) | Yes (Platform) |
| EasyOCR | JaidedAI | Apache 2.0 | n/a | Yes | No |
| LlamaParse | LlamaIndex | Proprietary | – | Enterprise only | Yes (default) |
| Mathpix | Mathpix Inc. | Proprietary | – | Enterprise on-prem | Yes |
| Azure AI Doc Intel | Microsoft | Proprietary | – | Containers | Yes |
| AWS Textract | Amazon | Proprietary | – | No | Yes |
| Google Document AI | Proprietary | – | No | Yes | |
| Mistral OCR | Mistral AI | Proprietary | – | Enterprise | Yes |
| ABBYY | ABBYY | Proprietary | – | Yes (mature) | Cloud SDK |
| Nanonets | Nanonets | Proprietary | – | Enterprise | Yes |
Capability Matrix
| Tool | OCR | Layout | Tables | Equations | Handwriting | Forms | Reading order |
|---|---|---|---|---|---|---|---|
| Marker | Y | Y | Y | Y | Y | Partial | Y |
| Surya | Y | Y | Y | Y | Y | – | Y |
| Chandra | Y | Y | Y | Y | Y (best OSS) | Y | Y |
| Docling | Y | Y | Y | Y | Partial | Partial | Y |
| olmOCR | Y | Y | Y | Y | Y | – | Y |
| Tesseract | Y | – | – | – | Weak | – | Weak |
| PaddleOCR | Y | Y | Y | Y | Partial | Y | Y |
| Unstructured | (delegates) | Y | Y | – | (depends) | – | Y |
| EasyOCR | Y | – | – | – | – | – | – |
| LlamaParse | Y | Y | Y | Y | Y | Y | Y |
| Mathpix | Y | Y | Y | Y (best) | Y (best) | – | Y |
| Azure AI DI | Y | Y | Y | Y | Y | Y | Y |
| AWS Textract | Y | Y | Y | – | Limited | Y | Y |
| Google Doc AI | Y | Y | Y | – | Y | Y | Y |
| Mistral OCR | Y | Y | Y | Y | Y | – | Y |
| ABBYY | Y | Y | Y | – | Y | Y (template) | Y |
| Nanonets | Y | Y | Y | – | Limited | Y | Y |
Deployment Model
| Tool | Local CPU | Local GPU | Docker | SaaS | On-prem enterprise | Air-gap |
|---|---|---|---|---|---|---|
| Marker | Slow | Fast | Yes | Yes | Self-host | Yes |
| Surya | Slow | Fast | Self-build | – | Self-host | Yes |
| Chandra | Very slow | Fast | Yes | Yes | Self-host | Yes |
| Docling | Yes | Faster | Yes | – | Self-host | Yes |
| olmOCR | – | Required | Yes | Demo | Self-host | Yes |
| Tesseract | Yes | – | Yes | – | Self-host | Yes |
| PaddleOCR | Yes | Faster | Yes | – | Self-host | Yes |
| Unstructured | Yes | Yes | Yes | Yes (Platform) | Self-host | Yes |
| EasyOCR | Yes | Yes | Yes | – | Self-host | Yes |
| LlamaParse | – | – | – | Yes | Enterprise | – |
| Mathpix | – | – | – | Yes | Enterprise | Enterprise |
| Azure AI DI | – | – | Disconnected containers | Yes | Yes (subset) | Limited |
| AWS Textract | – | – | – | Yes | – | No |
| Google Doc AI | – | – | – | Yes | – | No |
| Mistral OCR | – | – | – | Yes | Enterprise | Enterprise |
| ABBYY | – | – | – | Cloud SDK | Yes | Yes |
| Nanonets | – | – | – | Yes | Enterprise | Enterprise |
Pricing Model
| Tool | Open source? | Free tier | Paid model |
|---|---|---|---|
| Marker | Yes | Free for users under $2M revenue | Datalab managed: $5 free, then per-page |
| Surya | Yes | Same as Marker | (no separate hosted) |
| Chandra | Yes | Same as Marker | Datalab managed: per-page |
| Docling | Yes | Free | – |
| olmOCR | Yes | Free | – |
| Tesseract | Yes | Free | – |
| PaddleOCR | Yes | Free | – |
| Unstructured | CE only | Free CE | Platform: usage-based |
| EasyOCR | Yes | Free | – |
| LlamaParse | No | 10K free credits | Per-page |
| Mathpix | No | Limited free Snips | Subscription + per-call API |
| Azure AI DI | No | Free tier (low volume) | Per-page tiered |
| AWS Textract | No | (none) | Per-page tiered (3 endpoints) |
| Google Doc AI | No | Free trial | Per-page tiered (per processor) |
| Mistral OCR | No | – | Per-call |
| ABBYY | No | Free trials | Subscription + enterprise per-page |
| Nanonets | No | Free tier | Tiered SaaS + enterprise |
Recommended Defaults
Self-Hosted RAG / Knowledge Base
- Docling – MIT, IBM-backed, no licence anxiety; best default
- Marker – highest practical accuracy / throughput trade-off if revenue under $2M and GPL is acceptable
- olmOCR – when commercial licence restrictions on Marker become a problem
- PaddleOCR – when CPU-only or non-Latin-script (Chinese / Japanese / Korean) accuracy matters
Hosted SaaS for RAG
- LlamaParse – if already using LlamaIndex
- Datalab managed – highest accuracy (Chandra), good batch support
- Mistral OCR – if EU sovereignty matters
- Azure AI / AWS Textract / Google Doc AI – match to whichever cloud the customer already uses
Specialty
- Mathpix – STEM, equations, math- heavy content
- Hyperscience / Rossum / Nanonets / Veryfi – templated business documents (invoices, claims, receipts)
- ABBYY – regulated, on-prem, template-heavy enterprise workflows
Just OCR (no layout)
- Tesseract – portable, ubiquitous, CPU-friendly; the lowest-friction baseline
- EasyOCR – simplest Python API
- PaddleOCR – best accuracy for the trade-off; 80+ languages
Tools
17 tools.
ABBYY FineReader / FlexiCapture / Vantage
ABBYY is the veteran of enterprise OCR. Founded in 1989, the company has been selling commercial OCR for over three decades and remains the default choice for enterprise document-processing workflows where on-prem deployment, regulatory…
License: Proprietary (proprietary) · Kind: web · Deploy: saas, direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
AWS Textract
AWS Textract is Amazon’s managed document intelligence service. It covers the full category breadth: text detection (OCR), forms / tables / signatures detection, natural-language queries against documents, and specialist endpoints for **exp…
License: Proprietary (proprietary) · Kind: web · Deploy: saas · SSO: OIDC, SAML
ResorsIT usage: Web App with SSO
Access & Identity: Single sign-on · Directory / LDAP · Provisioned account
Azure AI Document Intelligence
Azure AI Document Intelligence (formerly Azure Form Recognizer) is Microsoft’s managed document-processing service.
License: Proprietary (proprietary) · Kind: web · Deploy: saas · SSO: OIDC, SAML
ResorsIT usage: Web App with SSO
Access & Identity: Single sign-on · Directory / LDAP · Provisioned account
Chandra
Chandra is Datalab’s highest-accuracy document intelligence engine – a vision- language model trained specifically for document understanding.
License: Apache-2.0 (OSS) · Kind: web · Deploy: direct, docker · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
Docling
Docling is the document intelligence project from IBM Research Zurich, hosted as a Linux Foundation AI & Data project.
License: MIT (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
EasyOCR
EasyOCR is the lowest-friction OCR Python library – pip install, three lines of code, and you have OCR working on 80+ languages.
License: Apache-2.0 (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
Google Document AI
Google Document AI is Google Cloud’s managed document-intelligence service. It exposes processors – pre-built, processor- specific endpoints for a given document type (invoice processor, receipt processor, contract processor, US W-2, U…
License: Proprietary (proprietary) · Kind: web · Deploy: saas · SSO: OIDC, SAML
ResorsIT usage: Web App with SSO
Access & Identity: Single sign-on · Directory / LDAP · Provisioned account
LlamaParse
LlamaParse is LlamaIndex’s commercial SaaS document-parsing service – the cloud-hosted counterpart to the open-source LlamaIndex RAG framework.
License: Proprietary (proprietary) · Kind: web · Deploy: saas · SSO: OIDC, SAML
ResorsIT usage: Web App with SSO
Access & Identity: Single sign-on · Directory / LDAP · Provisioned account
Marker
Marker is the headline open-source document intelligence tool from Datalab. It converts PDFs, images, PPTX, DOCX, XLSX, HTML, and EPUB files into structured Markdown, JSON, HTML, or chunked output suitable for RAG ingestion.
License: GPL-3.0-only (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
Mathpix
Mathpix is the gold standard for STEM and equation OCR. Originally built around the Snip desktop / mobile app – “screenshot an equation, paste LaTeX into your editor” – Mathpix has expanded into a full document-intelligence servic…
License: Proprietary (proprietary) · Kind: web · Deploy: saas · SSO: OIDC, SAML
ResorsIT usage: Web App with SSO
Access & Identity: Single sign-on · Directory / LDAP · Provisioned account
Mistral OCR API
Mistral OCR is an AI-first document-intelligence API from Mistral AI, converting PDFs and images to Markdown or JSON with preserved layout, tables, and equations and strong multilingual support.
License: Proprietary (proprietary) · Kind: web · Deploy: saas · SSO: OIDC, SAML
ResorsIT usage: Web App with SSO
Access & Identity: Single sign-on · Directory / LDAP · Provisioned account
Nanonets
Nanonets is a mid-market IDP platform that competes with the hyperscalers’ document-AI services on a friendlier UX and lower price point.
License: Proprietary (proprietary) · Kind: web · Deploy: saas · SSO: OIDC, SAML
ResorsIT usage: Web App with SSO
Access & Identity: Single sign-on · Directory / LDAP · Provisioned account
olmOCR
olmOCR is the Allen Institute for AI’s contribution to the open-source document intelligence space – a 7B-parameter vision- language model trained specifically to convert PDFs, PNGs, and JPEGs into clean, readable Markdown.
License: Apache-2.0 (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
PaddleOCR
PaddleOCR is Baidu’s open-source OCR toolkit, built on the PaddlePaddle deep- learning framework.
License: Apache-2.0 (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
Surya
Surya is Datalab’s OCR + document analysis toolkit – the lower-level building blocks that Marker uses to construct its end-to-end pipeline.
License: GPL-3.0-only (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
Tesseract
Tesseract is the canonical open-source OCR engine. Originally developed at HP Labs in the 1980s, open-sourced in 2005, sponsored by Google through the 2010s, and now community- maintained, Tesseract is the OCR everyone benchmarks agains…
License: Apache-2.0 (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
Unstructured
Unstructured.io positions itself explicitly as “ETL for unstructured data” – the piece that lives between a corporate document repository and a vector store / LLM.
License: Apache-2.0 (OSS) · Kind: web · Deploy: direct · SSO: none
ResorsIT usage: Web App without SSO
Access & Identity: Forward-auth · Vaulted credential
