base64 encode decode 2
https://mag-wiki.win/index.php/Why_Image_to_Text_OCR_Is_Still_the_Best_Way_to_Digitize_Documents
Base64 encoding converts binary data into a string of ASCII characters, making it safe for text-based systems like email or JSON. Decoding reverses this, turning the encoded text back into its original form. It's commonly used to embed images in HTML or transmit files via APIs.