Welcome to Ribblr @Mollyanna !
Unlike traditional patterns, Ribblr ePatterns are fully interactive which means you can click a line to track your progress (and continue where you left off), watch video tutorials, doodle on the pattern, ask for help, select to view your size only instead of all sizes, convert cm to inches in a click, open a repeat counter and more things that we cannot offer with printed patterns.
Some designers may choose to add PDFs within their interactive patterns but ultimately it is up to them.
Weâre sure youâll love Ribblr ePattern! 
For traditional patterns only we recommend purchasing directly on the designerâs website if they have one, so you can make sure you are protecting them from piracy and they can keep more profit.