TAILIEUCHUNG - adobe dreamweaver cs5 on demand part 23

Nếu bạn có phần mềm Adobe Fireworks cài đặt trên máy tính của bạn, bạn có thể sử dụng chương trình để tối ưu hóa hình ảnh một trong một trang web từ trong Dreamweaver. Khi bạn chọn một hình ảnh, bạn có thể sử dụng nút Tối ưu hóa Trong pháo hoa trong bảng Properties hoặc lệnh bắn pháo hoa trên các menu con Hình ảnh trên menu Modify. | Optimizing Images Using Fireworks If you have Adobe Fireworks installed on your computer you can use the program to optimize an image in a Web page from within Dreamweaver. When you select an image you can use the Optimize In Fireworks button in the Properties panel or the Fireworks command on the Image submenu on the Modify menu. Optimize an Image Using Fireworks Open a Web page with the image you want to optimize. Select the image you want. Click the Window menu and then click Properties to display the Properties panel. Click the Optimize In Fireworks button in the Properties panel or click the Modify menu point to Image point to Edit With and then click Fireworks. Confirm whether to optimize as a PNG file or use the open image file. Edit the image file. Click Done. Click Update. Click the File menu and then click Save. 142 Chapter 6 Using Low Source Images Loading graphics onto a Web page has a good and a bad side. The good side is that images spice up an otherwise dull and drab Web site. The bad side is that images take up file space and increase download times. It s a catch-22 situation your visitors expect lots of graphics and cool stuff and at the same time expect the page to load fast. The current rule on the Internet is called the 8-second rule it used to be the 10-second rule . In other words if your page doesn t load within 8 seconds many of your visitors will go elsewhere. One way to make a page load quicker is to specify low source images for your graphics. Low source images are copies of the original image but severely compressed. For example you have an image on your Web site of the Colorado Rocky Mountains and it s 150 k. You really want to use the image however you know on the average browser it takes 20 seconds to download the image. So you open a copy of the photograph in an image-editing application like Adobe Photoshop or Fireworks and you compress the copy to the max and you save it. In Dreamweaver you use the image for the low-source. When .

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