Unfortunately, Airtable doesn't have native OCR capabilities. However, you could do this with the Vision API extension - https://support.airtable.com/docs/vision-extension - or other OCR APIs with Scripting.
Either will require knowledge of code. If you need support with this, you might look at hiring an Airtable consultant - https://ecosystem.airtable.com/consultants
And/or posting in the Airtable Job Board - https://community.airtable.com/t5/job-board/bd-p/jobs
You might also look at OCR integrations on Zapier
We have created product/extensions that integrates with Airtable. It can extract text from a PDF file in an attachment field and save this text in a text field. It can process records in bulk and you can set it to run regularly. This can only process PDF file.