Your screen size, at least in 2022, is probably 1920 by 1080 (high definition, or HD) or thereabouts. If you're posting a photo to a website, whether it's your own blog or to social media, it's probable that most people are going to be viewing the photo at a resolution consistent with whatever's in stores.
There are some reasonable expectations, though. It's hard to know exactly what a "reasonable" image size and file size is for a photo on the Internet or being sent over email. To avoid confusion, in this article I use the term "image size" to refer to the pixel width and height of an image, and the term "file size" to refer to the bytes on a hard drive occupied by an image file. Of course, the larger the image size, the larger the file size, so the two are related. It's the file size that limits how easy something is to send it over the Internet because we all have different bandwidth allotments from our Internet providers and infrastructure.
The file size represents how many bytes on a hard drive or SD card the image uses. The image size represents how many pixels wide and high an image is when you look at it on your screen. What image size is good for the web?įirst of all, there are two kinds of "sizes" when discussing digital images. Here are five ways to optimize images for the Internet. You have to contain data, preferably in the smallest packaging possible, so that sharing it online goes faster for everyone. It's an endless cycle, common in the digital world: the tools are built for today's data, and today's data increases in complexity and size until the tools are revised and improved. But of course file sizes are getting bigger and bigger too, and so eventually the attachment limit will go up too. Accordingly, the maximum attachment size has increased to, say, 25 MB. Today, it's easily possible for a single photo to be 5 MB. There was a time when 5 MB was the reasonable maximum size for an email attachment.
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