Vector files are special pictures made with math on a grid, while raster files are built using tiny colored blocks called pixels.
Vector files can change size without losing quality, making them better for certain jobs than raster files.
The main vector files we usually work with are:
.ai: Short for Adobe Illustrator,
this file is commonly used in print media and digital graphics, such as logos.
.svg: The Scalable Vector Graphics format is based in XML (a markup language used widely across the Internet that's
readable by both machines and humans). It's useful for the web, where it can be indexed, searched, and scripted.
.eps: Encapsulated PostScript is an older type of vector graphics file.
.eps files don't support transparency in the way more modern file formats like .ai do.
“The key difference between vector and raster files comes down to utility.
Since vectors are based around formulas, a vector image can scale at high resolution to virtually unlimited sizes”