posted 7 hours ago
I don't, but mostly because my printer is constantly in a state of disrepair and my sewing style is more "what-the-hell" than preprinted pattern. if i found a pattern that looked promising i'd totally buy a PDF. (that said, I live in a place where i have a print shop that's a 10-min walk from my house and I often have things printed for my work at a really reasonable price). I assume if you're in north america you might have a public library where you can print them out cheaply, if you don't have a neighborhood print shop.
I have bought PDFs of knitting and crochet patterns online, many of them, with never a problem. If anything, you're usually buying directly from the pattern designer, who responds quickly to issues or, even better, has an extensive archive of info on Ravelry, for example, if you need help.