- 1
Screen resolution can vary from computer to computer.computers screen 2 image by chrisharvey from Fotolia.com
Create a new file in Adobe Illustrator by choosing "File" then "New." Change the measurement of units to "pixels." Set your image size in pixels according to your screen resolution. You can find out your computer's screen resolution by visiting What is My Screen Resolution (see References). - 2
Select a color for your background.color image by Yermashkevich Pavel from Fotolia.com
Set a background color for your wallpaper by selecting the rectangle tool in the toolbox and drawing a rectangle to fit the size of your canvas. Set a color for the rectangle by selecting one from the color palette. If you want to change this color at any time, simply use the selection tool (shaped like an arrow) from the toolbox, to select the rectangle you drew and choose a new color from the colors palette. - 3
Illustrator offers many fun shape tools.coloured shapes image by Leslie Batchelder from Fotolia.com
Hold down the rectangle tool in Adobe Illustrator to find additional shape tools. Use the same technique to draw and color additional shapes on the wallpaper. Try overlapping your shapes for an interesting design. - 4
Each brush in Illustrator creates a unique design.brushes image by Marek Kosmal from Fotolia.com
Use Illustrator's brush tool to add creative and colorful brush strokes to your wallpaper. Select the brush tool from the toolbox and a brush shape from the "brushes" palette. Experiment with different brush strokes until you have achieved the desired effect. - 5
Add text for an interesting wallpaper design.love words image by Imagenatural from Fotolia.com
Add text to your wallpaper by selecting the text tool in Adobe Illustrator. Use the character palette to adjust elements such as font, font size and letter spacing. - 6
It is important to save your file in the JPG image format.save image by dinostock from Fotolia.com
Save your file as a JPG image by selecting "File" then "Save for Web." When the window opens, use the drop-down menu on the right to select "JPG." Click the "Save" button. - 7
Set your wallpaper to appear on your desktop.pc monitor image by Jorge Casais from Fotolia.com
Set your JPG file as a wallpaper. On a mac, store your JPG wallpaper in the "pictures" folder. Select "system preferences" then "desktop and screensaver". Choose the "pictures folder" tab and select your new wallpaper. On a PC, right-click the wallpaper image and select "set as wallpaper."
Source...