Hi all, thanks for your help! I think I've discovered the issue is not related to Illustrator - the files appear perfectly clear when I export them as PDFs. The problem (likely compression as you mentioned @Levi) occurs when I upload the PDF to LinkedIn.
I'm brand new to this forum and really new to graphic design, so please feel free to explain things in detail to me!
I've recently purchased an illustration and edited it in Adobe Illustrator. I've set this up on artboards that are 788 x 788. I've added text to the image. In order to...