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Image Optimization Blog

Guides, tutorials and tips for optimizing images for web and mobile.

How to Compress Images Without Losing Quality

Learn the best techniques to reduce image file size while preserving visual quality for web and mobile.

A comprehensive comparison of image formats to help you choose the right one for your website.

Step-by-step guide to optimize images and dramatically improve your website's loading speed.

The ultimate guide to image dimensions for every platform — WordPress, Instagram, Twitter, Facebook, and more.

Everything you need to know about resizing images for the web, including responsive images and modern techniques.

A step-by-step guide to removing backgrounds from images automatically, including tips for getting the cleanest results on complex subjects.

Learn how AI and algorithm-based upscaling works, and when to use each method to get the sharpest results at higher resolutions.

Protect your photos and brand your work with custom text watermarks. Everything you need to know about watermarking images effectively.

An in-depth comparison of the three most common web image formats to help you make the right choice for every use case.

The complete, up-to-date guide to image dimensions for every major social platform in 2026 — with tips to avoid blurry uploads.

Learn how to extract pages from a PDF as images — and when to convert the other way, from images to PDF — using free online tools.