You can make a raster image into vector using Image Trace.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
Educator.com recommends Adobe Illustrator CS6 for use with the Illustrator course. Adobe Illustrator CS6 software is the industry’s premier vector-drawing environment for creating graphics that scale across media.