We scan everything with ocr functionallity by an office all-in one printer by canon. So a big portion of the files will be searchable anyways. The rest of the files can be uploaded to https://ocr.space/ocrapi. To extract the text in a filemaker textfield I use the MBS Plugin which is highly recommended anyway with the following call: MBS( "PDFKit.GetPDFText"; MEDIEN::Container_m ). Source: almost 2 years ago
Are you okay with paying for APIs? If so fair enough: https://ocr.space/ocrapi or browse https://rapidapi.com/marketplace for a good OCR API. As far as I know the only way to do it within python is with tesseract, which you could look into. Here's a resource on dealing with the PDF part. Source: almost 3 years ago
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