The a9t9 OCR API offers free image to text conversions. Use the API to parse text from images and return the results in JSON. It uses HTTP POST methods, and can handle multi page PDFs. The API is accessible on mobile or desktop, and is iOS and Android compatible. See the API docs for more information including method descriptions and rate limits. The OCR API supports 21 Languages, including Chinese, Japanese, Korean.
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So far, we don't have a record of any changes to this API