About Image Size and Resolution
The image size (or pixel dimensions) of an image is a measure of the number of pixels along an image’s width and height. For example, your digital camera may take a photo that is 3000 pixels wide and 2000 pixels high. These two measurements have a direct correlation to the image’s file size, and both are an indication of the amount of image data in a photo. Resolution is the fineness of detail you can see in an image. It is measured in pixels per inch (ppi). The more pixels per inch, the greater the resolution. Generally, the higher the resolution of your image, the better the printed image quality. Although a digital image contains a specific amount of image data, it doesn’t have a specific physical output size or resolution. As you change the resolution of a file, its physical dimensions change, and as you change the width or height of an image its resolution changes.
An example using Adobe Photoshop Elements can be viewed here of how we are changing the file size to better accommodate printed photos.
We are in the process of converting all images to a resolution 400 to 600 ppi, and saved in JPEG (.jpg) format which will result in larger file sizes than if they were saved in 72 ppi and will take longer to upload/download. A file size of 1.2 mbytes will take approximately 2 minutes to download over a 200 kbps connection (Typical Home DSL Speed). We appreciate your patience and understanding during this update process.