Image guides
Practical explanations for image formats, resizing, compression and browser-local workflows.
Formats
What Happens to Transparency When You Convert an Image to JPG?
JPG cannot store transparency. Learn how background colors replace transparent pixels and when PNG or WebP is the better format.
OptimizationWhy Your PNG File Does Not Always Get Smaller After Compression
Learn why lossless PNG optimization can produce small savings, no savings, or even a slightly larger result, and what to do next.
FormatsJPG vs PNG vs WebP: Which Image Format Should You Use?
A practical comparison of JPG, PNG, and WebP for photos, transparency, web graphics, screenshots, and everyday image workflows.
BasicsImage Dimensions vs File Size: What Actually Makes an Image Bigger?
Understand the difference between pixel dimensions and file size, and when resizing or compression is the right way to make an image smaller.