Rubygems

Portable Network Graphic (PNG)

(Best for general use)

Joint Photographic Experts Group (JPG)

Graphics Interchange Format (GIF)

WebP Image (WEBP)

Scalable Vector Graphic (SVG)

(Best for web designers)

Adobe Illustrator (AI)

Encapsulated PostScript (EPS)

(Best for graphic designers)

Portable Document Format (PDF)