What is this guide category for?
Each category page groups related ImgKit guides so you can move faster from a topic to the most useful guide.
Category
Guides grouped by category — image formats, compression, sizing, e-commerce, PDF, and more.
A complete reference guide to common image aspect ratios — 1:1, 4:3, 16:9, 9:16, 4:5 — and the specific requirements for Instagram, YouTube, TikTok, Twitter/X, and websites.
Read guideJun 15, 2026Understand the difference between image resolution, DPI, and PPI. Learn what settings are correct for web images (72–96 ppi) and print (300 dpi), and how to resize without distortion.
Read guideFAQ
Each category page groups related ImgKit guides so you can move faster from a topic to the most useful guide.
The pages update whenever new guidance, examples, or workflow improvements are added to the knowledge base.
Start here if you already know the category you need. Use the main guides page if you want to browse more broadly.
Yes. Category pages help connect the topic hub, related guides, and the individual guide pages together.