Limitations in Document Intelligence

  • Release version: Xanadu
  • Updated August 1, 2024
  • 2 minutes to read
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    Summary of Limitations in Document Intelligence

    This guide details the key limitations of Document Intelligence and Now Assist in Document Intelligence as of the Xanadu release. Understanding these constraints helps ServiceNow customers effectively plan and deploy document processing workflows within these platforms.

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    Document Intelligence Limits

    • Supported File Formats: JPEG, PNG, and PDF files are supported.
    • File Size: Maximum file size allowed is 10 MB.
    • Page Count per Document Task: Up to 10 pages for JPEG and PNG files; up to 25 pages for PDFs.
    • Supported Languages: Refer to the specific languages supported by Document Intelligence for compatibility.
    • Document Rotation: Only rotations in 90-degree increments are supported.
    • Text Alignment: Text must be horizontally aligned for accurate processing.
    • Minimum Character Size: Characters must be at least 15 pixels in size.
    • Character Type and Set: Only printed characters are supported, including basic Latin alphabets, numbers, and specific accented characters and symbols.
    • Operation Mode: Supports asynchronous processing.
    • Task Volume: Up to 2,000 document tasks can be processed per instance daily.
    • Field Limits: Maximum of 50 fields per document extraction use case and 30 fields per document classification use case.

    Now Assist in Document Intelligence Limits

    • File Formats: Document extraction supports PDF files (both digital and scanned pages). Document analysis supports Microsoft Word documents (.docx).
    • File Size: Maximum of 5 MB, also limited by the system property com.glide.attachment.maxsize.
    • Page Count: Supports up to 15 pages per document task.

    Practical Implications for ServiceNow Customers

    When implementing Document Intelligence or Now Assist in Document Intelligence, customers should ensure their documents adhere to the supported formats, size, and page limits to avoid processing errors. Understanding these limits is crucial for designing use cases, especially when dealing with large volumes or complex documents. Awareness of character size and alignment requirements will improve extraction accuracy. Adjusting system properties may be necessary for file size constraints in Now Assist. By observing these parameters, customers can optimize document processing performance and reliability.

    There are several important limitations to be aware of when you’re using Document Intelligence. There are also some limitations with Now Assist in Document Intelligence that differ from the limitations in Document Intelligence.

    Document Intelligence limits

    The following table is a list of the important limitations in Document Intelligence.
    Table 1. Limits in Document Intelligence
    Limit Description
    File formats The supported file formats are JPEG, PNG, and PDF.
    File size limits The file size limit is 10 MB.
    Page count limit per document task Document Intelligence supports a 10-page count limit for JPEG and PNG.

    For PDFs, the page count limit is 25.
    Supported languages For information on supported languages, see Languages supported by Document Intelligence.
    Document rotation Document Intelligence supports rotating in 90-degree increments.
    Text alignment The text must be aligned horizontally within the document.
    Minimum character size The minimum character size is 15 pixels.
    Character type Document Intelligence supports only printed character types in a document.
    Character set Document Intelligence detects the following characters:
    • a-z, A-Z, 0–9
    • á à â ä ã å ß ç é è ê ë î ï í ñ ó ò ô ö õ ú ù ü û œ
    • Á À Â Ä Ã Å ẞ Ç É È Ê Ë Î Ï Í Ñ Ó Ò Ô Ö Õ Ú Ù Ü Û Œ
    • , : ; . ‘ \ ” ! ? ¿ ¡ + - * ( ) [ ] } { & % @ # / | ~ ^ < > ` ± = _ $ £ ¢ €
    Sync/async operations Async
    Maximum number of document tasks processed per instance per day The maximum number of document tasks processed per instance per day is 2000.
    Maximum number of fields per use case

    The maximum number of fields per document extraction use case is 50.

    The maximum number of fields (categories) per document classification use case is 30.

    Now Assist in Document Intelligence limits

    The following table is a list of the important limitations in Now Assist in Document Intelligence that differ from the limitations in Document Intelligence.
    Table 2. Limits in Now Assist in Document Intelligence
    Limit Description
    File formats

    For document extraction, the supported file format is PDF. The PDF may include pages that are created from digital or scanned paper documents.

    For document analysis, the supported file format is docx (Microsoft Word document).
    File size limits

    The file size limit is 5 MB.

    The file size limit is also determined by the com.glide.attachment.max_size system property.

    For more information, see Configure attachment system properties.
    Page count limit per document task

    The page count limit is 15 pages per file.