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Get excellent results quicker with industry-standard Adobe Photoshop CS, the software and its integrated Web production application, Adobe ImageReady CS software. Graphic and Web designers, photographers, and other video professionals can use and take advantage of indispensable features that include much improved file management, new design possibilities, a more superior way to create photos for the Web, and support for 16-bit images, digital camera raw data, and non-square pixels. Now you can create the best and highest of quality images more quickly and efficiently than ever before!

Photoshop Resolution (scanning) by Ron Smith When deciding what resolution you need for your Photoshop art work, or how you should scan the art that you have received from your client, you must consider the "Final Output." Is your final artwork going to be used on the Internet, printed in the newspaper, or is it going to be printed on glossy stock for a magazine cover? Every medium has it's own particular specifications that need to be met at the beginning of your work in order to insure the highest quality for the finished product. Let us consider the two photos below. Notice how the one on the left appears out of focus. Both of these photos were scanned and sized in Photoshop. The photo on the left (Converted) was created from a 2" file at 72 ppi. It was then increased to 300 ppi (The standard resolution for a 150 lpi print job). The photo on the right is the same physical size, but was created at 300 ppi.
Converted	High Resolution
Using the Navigation Palette in Photoshop, let us enlarge each of these photos to 400%. You can see that the Converted photo is more "Pixelated" than the High Resolution photo.
Converted	High Resolution
Remember, after you scan and rasterize an image, you have a finite amount of pixels in that image. If you need to increase the physical size with the same ppi, or increase the ppi with the same physical size, Photoshop has to use "Interpolation" to create the new image. This means Photoshop must invent new pixels that did not exist in the original image. This always results in a lower quality image. And maybe the loss of a Client! After seeing what could happen, let us take steps so that it does not happen to us. Assume that you have a client that needs a front cover designed for a magazine. The client has provided a 4x5 photo to use in the design. You have decided to fill the background of the cover with this photo upon which you will add the needed text and additional art work. The final art work must be 8x10. The stock will be glossy and printed at 150 lpi (Lines Per Inch). This means that your final image must be at a resolution of 300 ppi (Pixels Per Inch) which is usally arrived at by doubling the lpi. How do you scan the 4x5 photo to achieve the resolution you need?
Figure 1	Let us begin by opening up a blank Photoshop file by Choosing File>New. You should get the menu in fig- ure 1. Enter the physical size and resolution of your desired final image (Width 8, Height 10, Resolution 300) and click OK.
Figure 2	Now with this blank image opened, Choose Image > Image Size, and you should have the menu in figure 2. Uncheck the "Resample Image" box and notice that the Pixel Dimension selections are no longer available. This means that there will be no interpolation on the part of Photoshop because no pixels will be deleted or invented.
Figure 3	Now, in the "Print Size Box" change the "8" to a "4." If the "Constrain Proportions" box was checked, you should have a menu that looks like figure 3. Notice the Width and Height are now 4x5, but the Resolution is 600 pixels per inch. The Pixel Dimensions have not changed, nor has the file size because you instructed Photoshop to not resample the image, but work with what you gave it. Change the Resolution to 300 and the physical dimensions will change back to 8x10. This means that if you scan your 4x5 photo at 600 ppi, you will have an image that you can change into an 8x10 at 300 ppi without loosing any quality.