Service to detect if a PDF is scanned?

Question

Hi,

Is there a service that will detect if a PDF is scanned? I'd like to determine if a PDF is text-based or a scanned image before OCRing it. I don't see what I'm looking for in PDFProperities.

Thanks,

Jeff

Joel Geraci · Accepted Answer

In the output from PDF Properties API, look in the "pages" property. For each page you'll see something like the code below.

Be sure to verify the "is_scanned" boolean by checking if the file has only one image and "only_images" is true. If the file has been OCRed, "has_text" will be true.

{
    "page_number": 0,
    "is_scanned": true,
    "width": 630,
    "has_structure": false,
    "content": {
        "number_of_images": 1,
        "only_images": true,
        "has_text": false,
        "has_images": true,
        "is_empty": false
    },
    "height": 810
}

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