Hello again, @Nivedita ! Great to see that you are really active here in our community.
To be really direct and clear, I will say we can not. This decision is based mainly on the accessibility of our platform.
You can check more details about it here, under this report:
Here is an excerpt from that report:
Firstly, some background on our decision not to provide the option to align: justify. You can read more about it here] http://www.dyslexiaaction.org.uk/page/text-formatting-best-practice and here https://designforhackers.com/blog/justify-text-html-css/ but the short answer is that:
Justification is not good for accessibility, and we strive to make all of our products as accessible as possible.
Web browsers at the moment are not good at handling justification and so instead of hyphenation and modified kerning, just add large spaces in between words.
So, for short, we can not justify text in Confluence. Hope this answers your question, Nivedita!
Let me hear from you.
Adding more and more plugins to Confluence loses the purpose of it. Why should I use it if it doesn't have basic stuff like justifying text!? Switching back to MS Word and SharePoint doesn't sound so bad now, at least it would spare me some headache...