• Adobe Reader has been replaced by Adobe Acrobat DC. 
• The following are some of the new features:
• The new Tools menu makes it simple to do common tasks.
• Mobile Link allows you to view recent files on many PCs and devices.
• Fill out, sign, and send forms on your iPad using the free Adobe Fill & Sign app.
• On your iPad, you may edit text with font matching, sizing, colours, and more.
• Reorder, rotate, and delete pages in PDF files to organise them.
• Highlights, comments, and text alterations can all be undone and redone.
• Open files from your Creative Cloud library.
• Support for Enterprise IDs is required to log in.

Read More: How do I get Adobe Acrobat DC for free?