WriterKey does not yet have built-in support for handwriting recognition. You will need to first scan and convert the hand-written documents into any one of the supported file types (.doc and .docx are preferred). There are many free online tools available to perform the conversion, such as Online OCR.
The accuracy of the conversion is directly related to the quality and readability of the scanned document.
The accuracy of the conversion is directly related to the quality and readability of the scanned document.