Limitations in Now Assist in Document Intelligence

  • Release version: Zurich
  • Updated August 26, 2025
  • 2 minutes to read
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    Summary of Limitations in Now Assist in Document Intelligence

    This document outlines key limitations of Now Assist in Document Intelligence as of the Zurich release. Understanding these constraints helps ServiceNow customers effectively plan and configure their use of Now Assist for document processing and AI-driven insights.

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    Skill Limits for Now Assist in Document Intelligence

    • Supported File Formats: JPEG, PNG, PDF, and DOCX. Note that encrypted files are not supported.
    • File Size Limit: Maximum file size is 20 MB.
    • Page Count Limit:
      • With image mode enabled: up to 10 pages per file.
      • With image mode disabled:
        • 200 pages per file if no tables are defined in the use case.
        • 20 pages per file if tables are defined in the use case.

      Note: Image mode selection occurs during use case setup.

    • Maximum Number of Fields per Use Case: Up to 50 fields can be configured per use case.
    • Supported Languages:
      • For image files requiring OCR, language support depends on OCR models designed for different language groups.
      • For text-based files, any language supported by the selected or default large language model (LLM) is recognized.

    Limits for the Document and Visual Insights AI Agent

    • Supported File Formats: Extends to JPEG, PNG, PDF, DOCX, XLSX, CSV, TXT, and PPTX.
    • File Size Limit: Also capped at 20 MB.
    • Page Count Limit:
      • 200 pages per file for general documents.
      • Reduced to 20 pages per file if tables are part of the use case.
    • Supported Languages: Recognizes languages supported by the selected or default LLM model for both image and text-based files.

    Practical Implications for ServiceNow Customers

    When configuring Now Assist in Document Intelligence:

    • Ensure files conform to supported formats and size limits to avoid processing errors.
    • Consider the page count restrictions, especially when tables are involved, to optimize extraction accuracy and performance.
    • Limit use cases to a maximum of 50 fields to maintain system efficiency.
    • Select appropriate language models based on document language and format for effective text recognition.

    Being aware of these constraints will help customers design effective document automation workflows and leverage Now Assist capabilities optimally within the platform.

    There are several important limitations to be aware of when you’re using Now Assist in Document Intelligence.

    Now Assist in Document Intelligence skill limits

    The following table lists the important limitations for the skills in Now Assist in Document Intelligence.
    Table 1. Skill limits for Now Assist in Document Intelligence
    Limit Description
    File formats
    The supported file formats are JPEG, PNG, PDF, and DOCX.
    Note:
    Encrypted files are not supported.
    File size limit

    The file size limit is 20 MB.
    Page count limit

    If image mode is turned on for the use case, the page count limit is 10 pages per file.

    If image mode is turned off, the page count limit is:
    • 200 pages per file if no tables are defined for the use case.
    • 20 pages per file if a table is defined for the use case.

    Image mode is selected during use case setup. For more information, see Set up a use case for Now Assist in Document Intelligence.
    Maximum number of fields per use case

    The maximum number of fields per use case is 50.
    Supported languages

    For image files that need optical character recognition (OCR) to detect the text in them, there are OCR models to support different language groups. For more information, see Languages supported by Now Assist in Document Intelligence.

    For text-based files, the skill recognizes any language supported by the selected or default model, as described in the model card for the LLM. For more information on LLMs, see Large language models used by Now Assist in Document Intelligence.

    Limits for the document and visual insights AI agent

    The following table lists the important limitations for the document and visual insights AI agent.
    Table 2. Document and visual insights AI agent limits
    Limit Description
    File formats

    The supported file formats are JPEG, PNG, PDF, DOCX, XLSX, CSV, TXT, and PPTX.
    File size limit

    The file size limit is 20 MB.
    Page count limit

    For each document task, the page count limit is 200 pages per file.

    If the AI agent performs the extraction based on a use case that includes a table, the limit decreases to 20 pages per file.
    Supported languages

    For image and text-based files, the AI agent recognizes any language supported by the selected or default model, as described in the model card for the LLM. For more information on LLMs, see Large language models used by Now Assist in Document Intelligence.