Confused by vector files, raster images or 300 dpi requirements? This simple guide explains the difference between raster and vector graphics, when to use each file type, and how to avoid blurry logos, pixelated figures and printing headaches.

Struggling with blurry images for posters or publications? Here are three practical ways to upscale pixellated images for print, plus when to be careful with AI tools that can change what your image actually shows.

Compare the best free graphic design programs for researchers - GIMP, Inkscape, Sketchbook, and Affinity - and choose the right tool for figures, posters, and graphical abstracts.