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Learn what image compression is and how to reduce image file sizes without losing quality. Our guide covers lossy vs. lossless, JPEG vs. PNG vs. WebP, and the best tools for the job.

A complete comparison of image resizing tools. We compare online resizers, professional software like Photoshop, and free desktop apps to help you find the best solution for your needs.

学习如何为任何平台调整图片大小。我们的完整指南涵盖了从基本的大小调整和压缩到高级的批量处理技术。非常适合社交媒体、网站和电子邮件。

Our complete, updated guide to social media image sizes for 2025. Get the exact dimensions for Instagram, Facebook, X (Twitter), LinkedIn, YouTube, and more to keep your profiles looking professional.