While Adobe Reader 11.0 is legacy software, it was designed for the following environments:
Users could access a complete set of commenting tools, including sticky notes, highlighter, and free-form drawing, directly within the free version. adobe reader 11.0
Adobe Reader 11.0, also known as Adobe Acrobat Reader DC, is a free software application developed by Adobe Systems. It is a popular PDF (Portable Document Format) reader that allows users to view, print, and interact with PDF files. Released in 2012, Adobe Reader 11.0 was a significant update to the software, offering enhanced performance, security, and features. While Adobe Reader 11
If you are still using Adobe Reader 11.0, it is highly recommended that you upgrade to a modern PDF viewer to ensure your system remains secure. including sticky notes