Why is it difficult to compare per-line pricing methods?
Historically there have been many definitions of lines. Lines can be visible lines or can consist of some number of characters. A given amount of text occupies a varying number of lines when the text font size is changed or when the page’s margins change. There is no standard number of characters per line. There are also various ways of counting characters, with some characters being counted twice to reflect formatting (boldface, italics, etc.
Historically there have been many definitions of lines. Lines can be visible lines or can consist of some number of characters. A given amount of text occupies a varying number of lines when the text font size is changed or when the page’s margins change. There is no standard number of characters per line.