Common sizes
1920px for full-width web images, 1200px for blog posts, 800px for emails, 400px for thumbnails. Height adjusts automatically to keep proportions.
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FAQ
Does resizing reduce file size too?
Yes. Fewer pixels means a smaller file, and we re-encode at your chosen quality, so resizing usually shrinks the file significantly on top of the dimension change.
Will the aspect ratio stay correct?
Always. You set a max width and the height is calculated automatically to keep the original proportions — no stretching or squishing.