Global Camera Based Digital Pen Market Size, Trends and Growth Opportunity, By Product (Handwriting, Scanning), By Compatibility (Multiple Operating System, Single Operating System), By Platform (Android, iOS, Windows), By Application (Billing & Back Office, Clinical Documentation, Communication, Education, Media & Entertainment, Retail, Other Applications), By End User (Banking, Financial Services, and Insurance (BFSI), Government, Healthcare, IT & Telecom, Manufacturing, Other End Users), By Region and Forecast till 2027.