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Image Guides

Plain-language help with file sizes, formats and upload errors.

How to Reduce Image Size Without Losing QualityFour simple levers that shrink an image file: dimensions, compression quality, format and cropping, and the order to use them in.KB vs MB: Understanding Image File SizeWhat KB and MB mean, how to convert between them, and why upload forms often ask for sizes in KB.JPG vs PNG: Which Is Smaller and When to Use EachA plain explanation of lossy and lossless images, with advice on which format to choose for photos, screenshots and logos.How to Compress an Image on Your PhoneYou do not need an app. Use your phone's browser to reduce a photo to the size you need.Image Too Large for an Upload Form? A Quick ChecklistWhy uploads get rejected and a step-by-step way to fix size, format and dimension errors.