Photoshop cs5 by steve Johnson part 61 doc

ptg Controlling Image Output Introduction Once you create your Adobe Photoshop masterpiece, you will have to decide the output for the image file. This is not an easy decision. For example, an image created with a reso- lution of 72 ppi might be fine if output to the Web, but would not be of sufficient quality for output to a high-quality laser printer. In addition, images saved in the RGB color space would not work if the image were to be printed on a 4-color press, which uses the CMYK color space. Raster images (such as Photoshop files) do not handle change very well, so it's important to design with a goal in mind. Designers call this process a workflow. When you start a Photoshop project you should have a good idea of where the project is headed—to a press or inkjet printer, a copy machine, or a monitor. Knowing this information helps you design with the end in mind. That's not to say you can't make changes to a Photoshop document; however, when it comes to color space and resolution, the less change, the better the output quality. When preparing images for the Web, it's important to understand that file size and format are important considera- tions. People aren't very patient when it comes to download- ing web pages. Creating good-looking, yet fast-loading images keeps visitors on your web site, looking for more. Photoshop gives you the ability to perform image compres- sion using formats such as the JPEG (Joint Photographic Experts Group), and GIF (Graphics Interchange Format) for- mats. Those formats will make your images as small as pos- sible, while still retaining great quality. In image preparation it's all about control, and Photoshop gives you the tools to make the job easy. 16 16 What You’ll Do Set Document Print Options Set Print Output Options Print a Document Change Printer Settings Print One Copy Understand File Formats Save a Document with a Different File Format Insert File Information into a Document Understand File Compression Prepare Clip Art for the Web Prepare a Photograph for the Web Prepare an Image for the Press Prepare an Image for an Inkjet or Laser Printer Understand Monitor, Image, and Device Resolution 381 From the Library of Wow! eBook ptg 382 Chapter 16 When you select the Print command, Photoshop displays a preview Print dialog box , which gives you the opportunity to view the image (on screen), and decide whether to print. The white area in the image pre- view is the printable area, while the shaded border at the edge shows the paper margins. You can adjust the position and scale of the image and see the results. The size of the image is determined by the document size settings in the Image Size dialog box. When you scale an image in the Print dialog box, the changes only affect the printed image, not the actual image. When you select a printer, Photoshop automatically selects a printer profile for the best results (New!). If you want to use the same print settings the next time you print, Photoshop can remember your settings. In addition, when you save the image, your print settings are saved along with it (New!), which allows for one-button printing. Setting Document Print Options Set Document Print Options Open a document. Click the File menu, and then click Print. Click the Printer list arrow, and then select a printer. Choose from three output options: ◆ Match Print Colors. Select to show the soft-proofed printed colors in the Preview, and the select any of the following: ◆ Gamut Warning. Highlights out of gamut colors. ◆ Show Paper White. Sets image whites to the color of the paper being used to compensate for off-white or beige paper stock. To chang e the ima ge or ientat io n, click the Portrait or Landscape button. To have 16-b it pe r co lo r ch an nel data sent to the printer (Mac only), select the Send 16-bit Data check box. Select from the various Position options: ◆ Center Image. Select to instruct the output device to center the image on the paper. 7 6 5 4 3 2 1 4 7 56 3 From the Library of Wow! eBook ptg Chapter 16 Controlling Image Output 383 ◆ Top. Instructs the output device to print the image from the top of the page. ◆ Left. Instructs the output device to print the image from the left of the page. Select from the various Scaled Print Size options: ◆ Scale to Fit Media. Select to scale the document to the selected paper size. ◆ Scale. Enter a percentage value. ◆ Height. Enter an image height. ◆ Width. Enter an image width. Select from the various options: ◆ Bounding Box. Select to add a bounding box around the image. ◆ Units. Specifies the units of measure for size settings. Click Print Settings to choose setup options. Click Print to open the Print dialog box. ◆ To print one cop y wi th out displaying the Print dialog box, hold down Alt (Win) or Option (Mac), and then click Print One. Click Done to return to your document without printing. 12 11 10 9 8 Preview of active image 11128 10 Displaying vs. Printing an Image Although the image is displayed on a monitor, you still get to see an accurate representation of how the graphic and all its associated lay- ers and effects will appear. Remember, a monitor uses additive color (RGB), and most output devices, such as printing presses, use subtrac- tive color (CMYK). However, if you have a good, color-calibrated moni- tor, you should have a good idea of how the image will look. For Your Information Did You Know? You can manually scale and position an image. Select the Show Bounding Box check box, and then clear the Scale To Fit Media and Center Image check boxes. Then simply drag the image in the View window to reposi- tion, and then click and drag a corner to resize. 9 From the Library of Wow! eBook ptg 384 Chapter 16 Setting Print Output Options Set Print Output Options Open a document. Click the File menu, and then click Print. Click the list arrow at the top right of the Print dialog box, and then click Output. Select from the various Printing Marks options: ◆ Calibration Bars. Prints a gradient tint bar to compare color ranges. ◆ Registration Marks. Prints marks to align color separations. ◆ Corner Crop Marks. Prints marks where the page is to be trimmed. ◆ Center Crop Marks. Prints marks to identify the center of the page. ◆ Description. Prints text provided in the File Info dialog box. ◆ Labels. Prints the file name at the top of the page. ◆ Emulsion Down. Prints images to film. Use to make type readable when printing to photographic paper facing away from you. 4 3 2 1 On the right side of the preview Print dialog box, Photoshop not only gives you access to its powerful color management tools, it also lets you create calibration bars, add file name labels, and even place a cus- tom border around the image. Click the Color Management list arrow, and then click Output. Photoshop displays a listing of all the options available, including the ability to print vector data or change the docu- ment's encoding. For example, if you want to print a vector image that includes shapes and type with optimal results, you can use the Include Vector Data option to send the image to a PostScript printer. It's just one more way that Photoshop gives you control over document output. 3 4 From the Library of Wow! eBook ptg Chapter 16 Controlling Image Output 385 ◆ Negative. Prints an inverted image. Use if you want to print separations directly to film. Select from the various Functions options: ◆ Interpolation. Resamples the image to reduce the jagged appearance of a low-resolution image. ◆ Include Vector Data. Select to print a vector image. If the option is grayed, the image doesn’t contain vector data. ◆ Background. Selects a background color to be printed outside the image area. ◆ Border. Prints a black border around the image. ◆ Bleed. Prints crop marks inside rather than outside the image. Click Print to open the Print dialog box. Click Done to return to your document without printing. 7 6 5 5 67 See Also See “Setting Document Print Options” on page 382 for information on using the preview Print dialog box. From the Library of Wow! eBook . it's all about control, and Photoshop gives you the tools to make the job easy. 16 16 What You’ll Do Set Document Print Options Set Print Output Options Print a Document Change Printer Settings Print. along with it (New!), which allows for one-button printing. Setting Document Print Options Set Document Print Options Open a document. Click the File menu, and then click Print. Click the Printer. images (such as Photoshop files) do not handle change very well, so it's important to design with a goal in mind. Designers call this process a workflow. When you start a Photoshop project