I was unable to understand the similarities and differences between intent and purport. A description will be good to understand.
"Purport" usually has a negative connotation of falsely conveying a certain meaning while "Intent" is more neutral.
The purport of this book is to present an objective take on abortion, although in actual fact, it leans heavily on anti-abortion viewpoints.
The intent of this book is to present an objective take on abortion.
As reported from the NOAD, the meaning of the words, when used as nouns, is the following:
The meaning of purport as verb is "appear or claim to be or do something, especially falsely", "profess".