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Chapter 13. Picture This (Working with G... > Making Slide Shows and Overhead Tran... - Pg. 127

Picture This (Working with Graphics) 127 · Don't overscan. If you're printing at 300dpi, scanning at 600dpi is a waste of time and disk space. In general, scan at 300dpi for outputting to most inkjet printers and 100dpi for Web pages and other electronic documents. Save the 1200dpi for high-end laser output or photo-quality output. · Don't underscan. To scan large images (say 8×10 inches), scan at higher resolutions. If you're scanning small images (say 2.5×3 inches) and you plan on enlarging the image, scan at the maximum resolution so you don't lose details when you enlarge the image. · Crop it. The larger the area you crop, the larger the file. Mark only the area you need to show before initiating the scan. · Use the right file type. BMP and TIFF are uncompressed file formats that produce the highest quality output. To save disk space, save scanned images in JPEG or GIF format. JPEG is re- ferred to as a lossy format because it drops details from the image to reduce the size of the image file. JPEG graphics are commonly used on Web pages and sent by e-mail because they consume less space and travel faster across Internet connections. Making Slide Shows and Overhead Transparencies Even if you are not in sales or marketing, you probably have seen a business presentation sometime in your life--most likely on TV or in a movie. A sales or marketing representative stands up in front of the board of directors or some other group and shows a series of slides that pitch a new product or show how profitable the company is. How did that person create this presentation? Probably by using a presentation graphics program. Although this book doesn't provide the scope to describe the ins and outs of using every major presentation program, I can give you a pretty good idea of what they can do. Most presentation programs enable you to create the following: · Onscreen slide shows--You can create a slide show that plays on a computer screen. If you have the right equipment, you can project the onscreen slide show onto a projector screen or wall or play it on a TV. (This is the coolest way to go because you can include video clips, animation, music, and audio clips in your slide show.) · Web slide shows--You can create a slide show that other people can play on the Web. A user can open your Web slide show in his or her Web browser and click links or buttons to flip from one slide to the next. Of course, you need an Internet connection. · 35mm slide shows--You can transform your presentation file into 35mm slides for viewing with a slide projector (great for encouraging unwelcome guests to leave early). If you don't have the required equipment to do this, you can send your presentation to a company that converts pre- sentations into slides. · Overhead transparencies--Most printers will print your slide show on special transparency sheets instead of paper (or you can send them out to have them done). You then can display them with an overhead projector. (When printing transparencies, be sure to get transparency sheets that are specifically for printers; otherwise, you'll be sucking molten plastic out of your fancy laser printer!) · Audience handouts--Many business people use presentation graphics programs to create au- dience handouts, which can be used alone or in conjunction with slide shows. If you're creating an onscreen slide show, you might be able to add some special effects: · Sounds--If your computer has a sound card (such as SoundBlaster), you can plug in a micro- phone and record your voice, music, or other sounds that will play when you move from one slide to the next. · Transitions--These are animated effects that control the movement from one slide to the next. For example, the current slide might transform into the next slide like vertical blinds.