Guides for Using Assets
Commercial use of free assets, choosing image sizes, handling file formats — the points people most often get stuck on, explained.
5 Things to Check Before Using Free Assets Commercially"Free" means free of charge, not free of rules. Here are the five things worth checking before you use a free asset in paid work.What Size Should a Blog Featured Image Be?1200x630 pixels works almost everywhere. Here is why, plus what to keep in mind for in-article images.Using Illustrations in School Newsletters and Public Sector DocumentsNon-commercial does not mean unrestricted. Here are the practical points to check before putting illustrations in newsletters and public notices.What Is WebP? What to Do When a Downloaded Image Will Not OpenIf you downloaded a .webp file and could not open it, here is what the format is for and how to convert it for Office and other software.Commercial Use of AI-Generated Illustrations (Our Position)Our assets are produced with image generation AI. Here is what is currently established, what tends to cause problems in practice, and the safeguards we apply.Do free illustrations need a credit line?Even when a site says no attribution is required, conditions are often attached. Here is when a credit line is needed and how to write one.Adding illustrations to slides: size and placementSlides are not blogs or print. Here is the resolution you actually need, how to avoid stretching, and how to place artwork around text.YouTube thumbnail size, and how much text fitsThe published specifications, plus what it takes to stay readable at the size viewers actually see.