Contao users have a reason to smile. Our team is happy to announce the launch of GroupDocs’ Annotation plugin for Contao. Our Document Annotation app, GroupDocs Annotation, is popular with our users because it lets them annotate most popular file formats. Annotate PDF, word processing Documents and images from a web-browser. GroupDocs Annotation lets you mark up Documents, share feedback, discuss ideas and expedite the Document review cycle. Invite colleagues for Document review....GroupDocs’ Annotation plugin for Contao . Our document annotation app...app, GroupDocs Annotation, is popular with our users because it...