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Supported inputs and limits

Each tool validates input before processing. This reference lists the current web-product formats and operational limits, which are separate from the future public API contract.

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Input matrix

Supported input types in the IA Checker web product
WorkflowAccepted inputCurrent limit
Pasted text detectionPlain textAt least 12 words; account-specific character cap
URL analysisOne public HTTP or HTTPS page40,000 readable characters per fetched page
Document extractionPDF, DOCX, TXT, MD, CSV20 MB; up to 120,000 extracted characters
Document OCRPNG, JPG, WebP, TIFF, BMP20 MB
Image detectionJPG, JPEG, PNG, WebP15 MB
EU AI LabelizerJPG, PNG, WebPUp to 20 images, 25 MB each

How document extraction chooses a path

Born-digital PDF, DOCX and text files use native extraction first. Scanned or layout-heavy material can move to the OCR path so the detector receives readable text instead of an empty document.

The extraction limit and the account character limit are applied separately. A large document may be read successfully and then shortened to the amount accepted by the selected tool.

Validation and conversion

  • The server verifies the MIME type and the file signature, not only the filename extension.
  • JPG, PNG and WebP images are normalized before model inference where needed.
  • Password-protected or malformed documents may need to be exported again before extraction.
  • Old binary .doc files should be converted to .docx before upload.