How to remove thin blue lines and paragraph symbols in Pages on an older iPad?

I use pages on my older iPad. I have been doing a document in pages currently. However, all of a sudden these tiny light blue line outlines paragraphs and i have the paragraph symbols all over. What is happening? How can i get rid of the blue outline lines, what are they, and how do i get rid of the paragraph symbols all over???? Help,

Sara

[Re-Titled by Moderator]

Original Title: How to get rid of thin blue lines around everything in Pages and i have tiny paragraph symbols all over that i want to get rid of also?