Adobe 65045315 Photoshop Elements Manual - Page 159

USING PHOTOSHOP ELEMENTS 10 153 Crop an image Cropping, resizing, retouching, and transforming photos Display the image size of an open file ❖ In the Edit workspace, click-hold the file information box at the bottom of the document. The box displays the width and height of the image (in the unit of measurement currently selected for the rulers), dimensions in total image pixels, the number of color channels, and the image resolution (ppi). View the print size on-screen ❖ In the Edit workspace, do one of the following: • Choose View > Print Size. • Select the Hand tool or Zoom tool, and click Print Size in the options bar. The magnification of the image is adjusted to display its approximate printed size, as specified in the Document Size section of the Image Size dialog box. Keep in mind that the size and resolution of your monitor affect the on-screen print size. Change print dimensions and resolution without resampling You might need to change the print dimensions and resolution if you are sending the image to a print shop that requires files to be at a specific resolution. If you are printing directly from Photoshop Elements, you don't have to perform this procedure. Instead, you can choose a size in the Print dialog box and Photoshop Elements applies the appropriate image resolution. Note: To change only the print dimensions or the resolution, and adjust the total number of pixels in the image proportionately, you must resample the image. 1 In the Edit workspace, choose Image > Resize > Image Size. 2 Make sure that Resample Image is deselected. If deselected, you can change the print dimensions and resolution without changing the total number of pixels in the image, but the image may not keep its current proportions. Note: Resample Image must be selected in order to use the Constrain Proportions and Scale Style functions. 3 To maintain the current aspect ratio, select Constrain Proportions. This option automatically updates the width as you change the height, and vice versa. 4 Under Document Size, enter new values for the height and width. If desired, choose a new unit of measurement. For Width, the Columns option uses the width and gutter sizes specified in the Units & Rulers preferences. 5 For Resolution, enter a new value. If desired, choose a new unit of measurement, and then click OK. To return to the original values displayed in the Image Size dialog box, use Alt (Option in Mac OS) + click Reset. Resample an image Changing the pixel dimensions of an image is called resampling. Resampling affects not only the size of an image on-screen, but also its image quality and its printed output-either its printed dimensions or its image resolution. Resampling can degrade image quality. When you downsample, meaning that you decrease the number of pixels in your image, information is removed from the image. When you upsample, or increase the number of pixels in your image, new pixels are added based on the color values of existing pixels, and the image loses some detail and sharpness. Last updated 1/2/2012