The group realized a need to make large photographic files smaller, so that they could be more easily shared. Some quality is compromised when an image is converted to a JPG. The reason is because the compression is lossy , which means that certain unnecessary information is permanently deleted.
Beyond the initial saving as a JPG, there are tools that will allow you to shrink the file further. This is useful for web images, as the smaller size will increase the speed at which the page loads. As broadband internet connections become more universal, this is becoming less of an issue.
However, those with slower internet connections or older, less powerful computers will thank you for your consideration. An important benefit, and oftentimes deciding factor for using a PNG file, is that—unlike a JPG—they support transparency.
This allows you to have a transparent background around an irregular-shaped object and avoid a white or other colored box outlining your image. File compression for a PNG is lossless. Like the term indicates, lossless compression retains all of the data contained in the file, within the file, during the process. Lossless compression is necessary when you have images that are still in the editing process. If you would like to suggest any additions or updates to this page, please let us know.
PNG File Extension. File Viewer Plus. Microsoft Photos. Microsoft Windows Photo Viewer. Microsoft Paint. Microsoft Paint 3D. Adobe Photoshop Adobe Photoshop Elements Adobe Illustrator In October , the first iteration of the file format was created, with further versions released in , and , when it became an international standard.
PNG files can sometimes be larger than a GIF and so it's worth considering whether the file format is definitely the best option for the use case. For example, if you have lots of images on one web page, you might want to consider either resizing the image so it's lower quality, or using an alternative image format that results in a smaller file size for example GIF. This conversion may result in stripping away the transparency of the image, so if you need to preserve the transparency, PNG is definitely the best option and worth using, even if it's a large file.
PNG files can be opened in any web browser, including Firefox , Chrome , Edge, Safari and Opera, as it's now the most widely adopted web image type. If you don't have an image viewer on your computer, you can even open it by dragging it from your desktop to your browser, although you won't be able to edit it this way.
If you're not sure if you already have an image editor installed on your computer, try double-clicking the image file and any supported program will open it up for you ready to edit. Explore why the most efficient way forward is data-driven. Critical vulnerabilities in Philips EMR system could risk patient data.
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