If we want to convert part of the hand and paper into an electronic file, in addition to scanning the computer with a scanner, we also need to use OCR text recognition software, to convert the scanned image to a text file. Google now supports OCR!
Official Website: http://docs.google.com/
Step
1. Open your browser, connect to http://docs.google.com, log on to your Google account, and click upload in the upper left corner 〕.
2. Click "select files to upload" and select the files to be identified.
3. Select convert text in a PDF file or image file to a Google file, and then click Start upload 〕.
4. After the upload is complete, enable the file you just uploaded.
5. You can find that the text in the original image file is automatically recognized as editable text files, and the unidentifiable parts are marked with a yellow background. Unfortunately, Chinese text is not supported yet.