- Getting started
- Adding graphics from other programs
- Comparing vector and bitmap graphics
- Managing links to imported files
- Updating revised graphics
- Adjusting display quality
- Importing and sizing graphics
- Editing placed pictures
- Working with dropped backgrounds
- Importing native Adobe graphic files
- Using an InDesign library to manage objects
- Exploring on your own
- Review questions
- Review answers
This chapter is from the book
This chapter is from the book
This chapter is from the book
Comparing vector and bitmap graphics
The drawing tools of Adobe InDesign and Adobe Illustrator create vector graphics, which are made up of shapes based on mathematical expressions, like plotting points on a graph. Vector graphics consist of smooth lines that retain their clarity when resized. They are appropriate for illustrations, type, and graphics such as logos, all of which are typically scaled to different sizes. Vector graphics can be scaled to any size with no loss of quality.
Bitmap images, or raster graphics, are made up of a grid of pixels and are typically created with digital cameras and scanners and then modified using an image-editing application, such as Adobe Photoshop. In working with bitmap images, you edit pixels rather than objects or shapes. Raster graphics are appropriate for continuous-tone images, such as photographs and artwork created in painting applications. A disadvantage of raster graphics is that they lose definition and appear “jagged” when enlarged. Additionally, bitmap images are typically larger in file size than a similar vector graphic. Raster graphics do lose quality when enlarged.
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In general, use vector-drawing tools to create art or type with clean lines that look good at any size, such as a logo used on a business card and also on a poster. You can create vector artwork using the InDesign drawing tools, or you might prefer to take advantage of the wider range of vector-drawing tools available in Illustrator. Use Photoshop to create bitmap images that have the soft edges of painted or photographic art, to retouch or alter photographs, and to apply special effects to artwork.
