There are several OCR software options available for recognizing handwritten documents. One of the best options is Nanonets, which uses AI to extract data from documents and images, making manual data entry obsolete. Another great option is Adobe Acrobat Pro DC, which helps you extract text and convert scanned documents into editable PDF files. Microsoft OneNote is also a popular choice for handwriting recognition, as it can convert legible handwriting into text and is available for free on Windows, Mac, iOS, and Android devices. Other notable options include FineReader PDF, Laserfiche, and SimpleOCR. These software solutions use various algorithms to classify light and dark areas as background and text, and then perfect the image through different techniques to accurately recognize handwriting. Additionally, there are cloud OCR solutions like Google Vision and Amazon Textract that provide accurate handwriting recognition for all types of documents. Overall, the best OCR software for recognizing handwritten documents will depend on your specific needs and budget.