• Files must be fairly high-resolution — rule of thumb is 10 pixel character height.
• Maximum file size: 10MB, maximum resolution: 25 mega pixel
• The larger the file, the longer the OCR operation will take (500K: ~15s, 2MB: ~40s, 10MB: forever)

Supported image formats that are uploaded on the demonstration page will be turned into text documents and displayed in Google Docs once the process has been completed. The quality depends largely on the quality of the image. It is usually necessary to look over the text and correct errors that have been made during character recognition. Google Docs helps in the error correction by underlining unknown words in red in its interface. It still takes some time to correct the errors.

The OCR demonstration is linked to a Google Docs account but not integrated into Google Docs yet. It is very likely that Google will integrated OCR capabilities to Google Docs in the near future. You can use the demonstration page for now to test the OCR service.