In addition to unnecessarily increasing the download size of your image files, storing too much metadata can cause other problems for your application. ![]() That said, not all browsers support ICC color profiles, so you should weigh the costs and benefits of including or excluding them. Color profiles: Color profiles stored as ICC metadata are intended to ensure that an image looks consistent across different devices with various hardware capabilities.Orientation instructions: EXIF data may also include instructions telling browsers how to orient the image, but if the image is already embedded directly into the website, then these instructions only come into play if users directly visit the image's URL.This information can sometimes come in handy but keep in mind that many social media websites automatically omit such data when images are shared. Copyright information: IPTC files sometimes contain information about the photographer or copyright holder.Since browsers don't make use of thumbnails, this data should be removed. Thumbnails: Image thumbnails are sometimes stored as EXIF data.Examples of image metadataīelow are some specific things to look out for when trimming metadata from your images. Most of this information isn't necessary for a browser to render the image, so it can be disposed of without worries. ICC files, which contain information about embedded color profiles.ĮXIF files alone can include dozens of specific details such as when the picture was taken, the shutter speed used and whether the flash was enabled.8BIM files, which are added by Photoshop.IPTC files, which hold user-added metadata.EXIF files, which hold information about the camera settings and manufacturer.For example, in addition to visual data, JPEG images might also contain: Different types of metadata are stored in different types of files. ![]() Image files actually contain several file types within them. According to research conducted by Dexecure, such metadata can account for more than 15 percent of a JPEG file's total size. Web developers sometimes add short descriptions, or tags, to metadata so that search engines can identify images. Metadata is any auxiliary information stored within a file, which may include when the file was created and last edited. This guide will explain how to make sure your image metadata isn't weighing down your applications and leaving them vulnerable to exploitation. Even worse, this data could contain sensitive information that you don't want visitors to know. If your website's images are taking forever to load, the data dwelling behind them could be partially to blame.
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