Why 96 dpi

Quality comes from having more pixels, not less so when you enlarge a pixel sized image to pixels you are making each pixel almost 5 times larger. It is for this reason that you will have your file rejected because the website designer or advertising agency does not want to use a poor quality image that is pixelated.

To combat this you should always ensure that the images you are using are the correct size to start with and you can do this by right clicking on the image and going to Properties and then Details. This window will tell you the resolution of the image and if it is less than the size that your graphic or website designer requests, it will very likely get rejected and cause pixelation.

A pixel has no set physical size. This means when looking to print an A5 image, each pixel cannot be converted to a scale such as millimetres in order to determine its printed size. To determine the printed size you need to know the resolution and also the dpi of an image which is how many of those pixels will be printed on an inch of paper.

This is how printing on paper works. Screens and websites do not work this way and contrary to what you believe, a dpi image will look the exact same on your screen as a dpi image!

Screens only require that the image resolution to be sufficient. Print always relies on resolution and dpi. Again, similar to website images they can be enlarged but this will only serve to further reduce the image quality if the dpi was not sufficient to start with. You do this by simply right clicking on the image and going to Properties and then Details. You will see properties called horizontal resolution and vertical resolution.

Some files may not have a dpi set and this will be determined when you go to print. The example to the right is set at 96dpi. If your printer or graphic designer was sent this file and they specifically requested that the image be provided at dpi to fit a print of 22 by 21 inches they may reject it as insufficient dpi.

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I have since read that 72 dpi is the optimum resolution for web pages images.? Does anyone have a view on this..? Thanks, Steve. Join Date Nov Posts 4, Hello Steve, A web browser does not care about dpi - it doesn't matter if an image is 72, 96, or dpi The only thing that matters for web images is the pixel dimensions e. That 72 or 96 dpi was probably come up as a guideline for people who have no idea about pixels. Good luck. You can calculate your monitors actual display resolution by measuring the width and height in inches or cm and dividing that into the of pixels in the display's width and height eg My 20" Dell displays at x pixels and measures You should always check to see that every picture you print has been set to the correct number of pixels per inch - ppi it doesn't have to be ppi