Tuesday 2 November 2010

Optimising Images

Version to be professionally printed by printing firm

PhotoShop files are a lot in memory and therefore you won't be able to send by email. You could change the file type for lesser quality and take up less space but if you wanted it to be professionally printed, you'll want the quality to be the best. The best opinion is to burn the file to a DVD or add to a memory stick and send it by post. Make no changes to the PhotoShop file and keep all the information such as layers.

Version required to be uploaded to staff intranet for managers in other continent to see

The Internet can't show PSD files so uploading the files to staff intranet wouldn't work. The best opinion is to save the PSD file as a lossless (PNG) file so you can make it smaller without throwing away the important data. To be viewed on the Internet, the size should be reduced to about 72dpi to make the file size smaller and it will upload a lot faster on the Internet because it would take longer to upload a larger file size.

Version required for main website

If you wanted to show your picture on a website for the public to look at, you wouldn't need a lot of the data (e.g. there wouldn't be much point adding a A2 image to a website because the image would be massive and website images are usually smaller). You can save the image as a lossy file (JPG) because it won't take up much space and you won't need to re size the file back to the original quality because it's for website viewing only. The image will upload faster and will load quicker when people jump on to the web page.

Version required for smart phone version of website

Mobile screens are smaller than PC / laptop screens so the image can be reduced a bit more. Reduce the size of the image and reduce the size of the file by saving it as a lossy file (JPG). The screen is small so the size of the image can be reduced to fit the screen of a mobile phone and reducing the size will also make the file faster to download for mobiles. Change dpi to 60 and reduce the colours to 256 to make the file even smaller.

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