Do you not use PowerPoint very often and find yourself wondering how to adjust a photo or graphic when creating a presentation? This tutorial provides quick and easy tips for editing images in PowerPoint 2010 ( instructions for PowerPoint versions 2003 and 2007 can be downloaded here ).

Contents:

• Scale images proportionally
• Convert images to grayscale
• Compress images
• Crop images
• Add image effects
• Add 3D image effects
• Recolor images
• Adjust brightness and contrast

Scale images proportionally

1. Scale images proportionally to any size. To do this, select the image with the left mouse button.
2. Hold down the mouse button and the Shift key, then drag one of the corner points that now appear and scale it to the desired size.

Convert images to grayscale

1. Start by double-clicking the image. The "Format" tab will open in the top menu bar.
2. Here, in the "Customize" section, under "Color", select the "Recolor" function and then in "Color Modes" select the "Grayscale" mode.

Compress images

1. You can reduce the file size of your images. To do this, double-click the desired image. The "Format" tab will then open in the top menu bar.
2. Here, in the "Customize" section, select the "Compress images" function.
3. In the compression dialog box, click "Options…" and in the next window select "Screen (150 ppi)" to reduce your images to an optimal size for websites and projectors.

Crop images

1. Select the image and click on "Format" in the top tab, then on the "Crop" icon.
2. With the mouse button pressed, you can select the desired image area by dragging the "cropping marks" without changing the original image.

Add image effects

1. Start by double-clicking the image. The "Format" tab for image editing will open in the top menu bar.
2. Here, in the "Image Styles" section, you can select predefined image effects. As an example, you can see the image style with "rounded corners and a mirror image".

Add 3D image effects

1. Start by double-clicking the image. The "Format" tab for image editing will open in the top menu bar.
2. In the "Image Styles" section, select the "Image Effects" function.
3. To achieve the effect shown, select the menu item "Preset" and then the style marked in red.

Recolor images

1. Start by double-clicking the image. The "Format" tab for image editing will open in the top menu bar.
2. In the "Customize" section, under "Color" select the "Recolor" function. Here, as shown in our example, you can select a "Dark Variant".

Adjust brightness and contrast

1. Start by double-clicking the image. The "Format" tab for image editing will open in the top menu bar.
2. In the "Adjust" section, you will find the "Corrections" icon. Click on it and then on "Image Correction Options".
3. In the window that has now opened, you can adjust the brightness or contrast as a percentage.

For further information on the topic of "image editing in PowerPoint", we recommend the article "Proper handling of images in presentations " as well as our tutorial series:

"Image editing in PowerPoint" at a glance

• Image editing in PowerPoint – Knowledge level 1 (inserting & editing images, cropping, resolution, image effects, etc.)
• Image editing in PowerPoint – Knowledge level 2 (creating photo clip art, combining photos with shapes)
• Image editing in PowerPoint – Knowledge level 3 (Animations with images)
• Image editing in PowerPoint – Knowledge level 4 (Inserting images into SmartArt graphics, PowerPoint photo album)
• Image editing in PowerPoint – Knowledge level 5 (Creating visually unusual images, inserting maps, extra tips)