TAILIEUCHUNG - Understanding Adobe Photoshop CS4- P12

Understanding Adobe Photoshop CS4- P12: Learning Adobe Photoshop is essential to success in digital media industries. Photoshop is a gateway into several related technologies. From digital image acquisition and processing to typography and compositing, Photoshop is often your fi rst introduction. If you can master this program, you can go on to success with several other technologies. With this in mind, it is important to learn Photoshop with one eye on the present and the other on the future. | 318 Chapter i6 Printing PDF and Specialized Output because the file can be stored at print resolution with embedded vector files and high-quality output options. Compression Options for Adobe PDF When you choose to save artwork as a Photoshop PDF you are presented with the Save Adobe PDF dialog box. You can choose to compress text and line art as well as downsample bitmap images. Depending on the chosen settings you can significantly reduce the size of a PDF file with little or no loss of detail. Let s open the Save Adobe PDF dialog box. 1. Open the image from the Chapter 16 folder. 2. Choose File Save As. 3. From the Format drop-down menu choose Photoshop PDF. 4. Target the Desktop for saving and then click Save to open the Save Adobe PDF dialog box. 5. A warning dialog box opens to caution you that the settings you choose in the Save Adobe PDF dialog box will override settings in the Save As dialog box. Click OK to dismiss the warning. 6. In the Save Adobe PDF dialog box you can choose an Adobe PDF Preset. This is a fast way to specify that the newly generated PDF file is intended for commercial printing or to be distributed via email. You can also choose to Preserve Photoshop Editing Capabilities to save layers and text editability for future changes. At this point you can click Save PDF to generate the file right away or keep modifying the settings for special purposes. PDF Essentials 319 ADOBE PDF STANDARDS You can choose to create a PDF that matches the most widely used standards for print publishing. There are three different types of PDF X formats PDF X-Ia 2001 and 2003 PDF X-1a is an industry-recognized standard for graphic exchange. Choosing PDF X-1a requires all fonts to be embedded and for the appropriate PDF bounding boxes to be specified. PDF X-compliant files must contain necessary information describing the condition for which they were prepared to be printed. PDF X-1a compliant files can be opened in Acrobat and Acrobat Reader

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