Unicode provides the capacity to left justified text

[FMLT]

Hi! I would like to ask you which of the following sentences is correct:

Unicode provides the capacity to left justified text
or
Unicode provides the capacity to left justify text

I used the second version of the sentence in my paper but the professor corrected it into the first one. I don´t understand his correction.

Thank you in advance!

 

[TimLA]

Poveri professori...

Unicode provides the capacity to have/type/use left justified text
or
Unicode provides the capacity to left justify text

I like the second one better.