1/27/2024 0 Comments Use imageoptim with shopify![]() We can test that by using a utility called jpegtran. If the images are the same the picture will be grey.Īs you can see, the image of the differences isn’t grey, meaning that pixel-by-pixel the image after being uploaded to Shopify is different.Ĭould it be the removal of the metadata / colour profile or for some reason lossless compression that is making it appear differently? This tool compares the images pixel-by-pixel and gives us a coloured picture of all of the differences. ![]() Now we download it from Shopify and compare it with the original using Beyond Compare. We’ll take this high resolution image again and resize it to just under 20 megapixels so it can be uploaded to Shopify. This is where it gets quite interesting and a bit geeky. That said, images uploaded to Shopify are compressed in a lossy way meaning the pixels are altered from your original. It doesn’t result in visible-to-the-human-eye differences. It also doesn’t achieve as large as a reduction in file size as you can get using lossy compression in an app for speed optimisation. The TL DR is that yes, surprisingly Shopify does compress uploaded images in a lossy way. ![]() Lossless is where the pixels are unchanged. Lossy compression gives us much smaller files than lossless but we ‘lose’ some of the pixel definition (for example, blending similarly coloured pixels together to a single colour). What about compression? …a surprising resultĪs you may know, image compression is where the filesize of the image is reduced in either a lossy or lossless way. However if you might want to use the image in print in future or edit it, the loss of the colour profile can lead to a degraded result there. Since the colour profile takes up space and is redundant for images displayed on the web, Shopify removes it on upload. Colour profiles are used during the photographic process to make sure that an image’s colours appear as desired across displays.Īn image has its own colour profile associated with it, but all images on the web use the same one: sRGB. An image’s colour profile is removedĬolours appear differently on different devices and displays. All of this will be deleted when you upload the image to Shopify. Metadata can also include tags to help you organise image collections. This metadata is often useful if you want to find out more information about the image in future. Why? Image metadata can get big, increasing the size of the image file requiring extra storage and download time for your shop visitors. Shopify removes all of this image metadata when you upload. Image metadata can include a lot of useful information like the date and time the photo was taken, how the camera was set up, geolocation and more. Shopify strips image metadata on uploadĮvery image contains a bunch of metadata: things that aren’t part of the image but are data about the image. But if you’re concerned that you may want to do heavy editing of the image in future there’s a small chance resizing it could limit the final quality. That’s a very generous limit given most images uploaded to Shopify will be displayed on the web where we get nowhere near to 20 megapixels. 20 megapixels is a lot, but for unedited image files direct from a camera it isn’t unusual. Let’s take this high resolution image and upload it to the Files section of our Shopify admin.įirst potential downside: if your images are larger than 20 megapixels you’ll have to reduce them to be able to upload. However there are some things you should be aware of before you do.īefore you clean up your hard drive or cancel your online photo storage account and move everything to Shopify take a look at our guide. Offering unlimited image storage on all plans, Shopify sounds like a great place to store all of the master image assets related to your online store.
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