how to enable document rights to add the marker to the bar

Use Acrobat Reader DC and you don't need this rights.

Hello Mennas,

Would you mind sharing more details about the query you have?

Are you referring to make a PDF file reader enabled so that can add comments? If yes, then you can make a PDF file Reader enabled using Acrobat.

This feature is not available in the freeware Adobe Reader application.

If you have a different query, I will request you to share more details. We're here to help.

Thanks,

Anand Sri.