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→Tip: Uploading images
==Tip: Uploading images==
When you upload images to your system, always size the images to the desired dimensions and save to the desired file format with compression. Image optimization is typically done in photo editing software such as Adobe Photoshop. Take the time to ensure your image files are 1 MB or less. Larger images can take several seconds to download and may cause a noticeable delay while pages load.
Note an image saved a 72 pixels per inch (ppi), 240 ppi and 500 ppi will all look the same if viewed at 200 pixels by 200 pixels. The quality of each version of image is exactly the same when viewed on screen. The higher ppi versions have a much higher file size which means your users may have to wait unnecessarily and use more data, but the higher ppi makes no difference to image quality om screen.
So, if the image you are uploading is intended to be printed in a PDF, then a higher resolution is ok such as 150 or 300 dpi (dots per inch), but if the image is going to be used as a background in a portal or the login page a smaller resolution such as 72 ppi is recommended.
In regards to file formats JPG and PNG are the best options for your system.
