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Best AI PDF Tools in 2026

Working with PDFs through AI tools may mean asking questions about documents, handling several files, or extracting information for another workflow. Compared on support for scanned PDFs, multi-file chat, and source citations, the entries also show API access, export formats, maximum file size, and upload limit. These details help you assess both what you can do with documents and whether they fit the stated constraints. Free-plan availability and paid-from pricing add cost context. LightPDF, AskYourPDF, and Veryfi API are among the named options. Compare the listed document handling and output features with the files and workflow you have in mind.

  1. 1

    Unstract

    Free plan Open source APILinuxMac+2

    Unstract offers several deployment paths and combines extraction workflows with optional human validation. Its plan limits and page overage charges are worth checking against expected document volume.

    8.5 Free plan · 14-day trial Visit site
  2. 2

    AskYourPDF

    Free plan AndroidAPIExtension+2

    AskYourPDF combines document chat, website agents, PDF form completion and API functions. The Free plan has defined daily and upload limits; Premium lists higher limits and is billed yearly.

    7.7 Free plan · paid from $11.99/mo (annual) Visit site
  3. 3

    Amazon Textract AnalyzeExpense

    Free plan APISelf-hostedWeb

    AnalyzeExpense extracts and normalizes invoice and receipt details, including unlabeled fields, for applications that process financial documents.

    7.6 From $0.01 Visit site
  4. 4

    ChatPDF

    Free plan AndroidAPIExtension+5

    ChatPDF combines document summaries, questions, citations, and file sharing, with support for several document formats and languages.

    7.6 Free plan Visit site
  5. 5

    Azure AI Speech

    by Azure AI Speech
    Free plan APISelf-hostedWeb
    7.5 Free plan Visit site
  6. 6

    Docling

    Free plan APILinuxMac+2

    Docling offers broad document conversion options, including local processing and AI framework integrations. Consider whether its local setup or managed-service limits best match your workflow.

    7.5 Open source Visit site
  7. 7

    ChatDOC

    Free plan APIWeb

    ChatDOC combines document conversations with citations and multi-file queries, and it offers APIs for integration.

    7.3 Free plan · paid from $8.99/mo Visit site
  8. 8

    LightPDF

    by LightPDF
    Free plan AndroidAPIExtension+6

    LightPDF combines common PDF workflows with chat-based tasks and additional AI functions.

    7.3 Free plan · paid from $5.99/mo · 3-day trial Visit site
  9. 9

    Avidnote

    Free plan Web

    Avidnote brings paper-focused writing, reading, analysis, and interview tools together in a web platform.

    7.2 Free plan · paid from $19/mo Visit site
  10. 10

    docAnalyzer

    Free plan APIWeb

    docAnalyzer brings document chat, source-linked answers, OCR, and batch workflows into one workspace.

    7.2 Free plan · paid from $8/mo Visit site
  11. 11

    LandingAI Agentic Document Extraction

    Free plan APISelf-hostedWeb

    LandingAI Agentic Document Extraction combines document parsing and schema-based extraction with source references and review signals.

    7.2 From $1 Visit site
  12. 12

    Collate

    Free plan Mac

    Collate offers PDF research and organization tools in a free Mac app, with local AI and optional provider-based models.

    7.1 Free plan Visit site
  13. 13

    Humata

    Free plan APIWeb

    Choose Humata if you want document answers with citations, or need to summarize and compare files.

    7.1 Free plan Visit site
  14. 14

    LlamaParse

    Free plan APISelf-hostedWeb

    LlamaParse supports document extraction across many formats, languages, and output types, with web, API, and self-hosted options.

    7.1 Free plan · paid from $50/mo Visit site
  15. 15

    Nanonets Document Intelligence

    Free plan APISelf-hostedWeb

    Nanonets combines document classification, extraction, confidence scoring and review routing, with multiple output formats and deployment options.

    7.1 Free plan · paid from $100/mo Visit site
  16. 16

    Reducto

    Free plan APILinuxMac+3

    Reducto combines document parsing with a range of pipeline-building options and a stated free-usage allowance. Teams should account for per-page rates on Standard and custom pricing for higher tiers.

    7.1 From $10 Visit site
  17. 17

    Explainpaper

    Free plan Web

    Choose Explainpaper if you want an AI reader that explains passages in context and lets you ask questions about a paper.

    7.0 Free plan · paid from $16/user/mo · 7-day trial Visit site
  18. 18

    SciSpace

    Free plan AndroidAPIExtension+2

    SciSpace brings literature discovery, PDF assistance, and writing tools into one research platform.

    7.0 Free plan · paid from $20/mo Visit site
  19. 19

    Leitor.AI

    Free plan Web

    Choose Leitor.AI if you work with PDFs and want AI summaries, document questions, or exportable findings.

    6.9 Free plan Visit site
  20. 20

    Scholarcy

    Free plan APIExtensionWeb

    Scholarcy offers several ways to turn research materials into summaries and flashcards, with research analysis and export options.

    6.9 Free plan · 7-day trial Visit site
  21. 21

    Veryfi API

    Free plan AndroidAPIiPhone+1

    Veryfi offers document extraction through APIs and capture options for mobile and browser applications. Check the per-transaction page limit and plan terms against expected document volumes.

    6.9 Free plan · paid from $500/mo · 14-day trial Visit site
  22. 22

    Myreader

    Free plan Web

    Myreader combines document and library chat with citations, summaries, and audio tools. Check the free-plan limits, inactivity deletion, and data-use terms against your reading needs.

    6.8 Free plan · paid from $7.50/mo Visit site
  23. 23

    PDF.ai API

    Free plan API

    PDF.ai API combines PDF parsing, structured extraction, section finding, and Q&A in one HTTP API. Review the operation-specific credit charges and key handling before building it into a workflow.

    6.8 Free plan · paid from $49/mo Visit site
  24. 24

    PDF.chat

    Free plan APIWeb

    Choose PDF.chat if page-cited answers, scanned document OCR, or side-by-side AI model comparisons are useful to your document work.

    6.8 Free plan · paid from $5/mo Visit site
  25. 25

    Rewind PDF Tools

    Free plan APIWeb

    Rewind PDF Tools combines PDF questions and summaries with web and API access. Its stated file handling and token allowances help clarify how the free options work.

    6.8 Free plan · paid from $5/mo Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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