Or, alternatively, when you highlight an area (background), a new button will appear saying Crop. This will delete everything outside the highlighted area. You can also delete everything outside the selected area if you prefer. Converting will replace the existing file.” Click the Convert button. This will make your image with the instant alpha areas transparent.Ħ. A popup may appear saying “Convert this document to PNG? Your last edit adds transparency, which the current document format does not support.This will remove the highlighted background. Once an area is selected, press the “Delete” key to remove the area. Click and drag anywhere on the background.ĥ. Click the Instant Alpha button to activate it.Ĥ. Note: you may click the Magnifying Glass icon to zoom so that you may work more comfortable.ģ. See this article if you are unable to open the file. Or you can right-click and select Preview. Open the photo or image that you would like to edit. If your photo has a complex background, you may want to use a more advanced image editing tool, like Photoshop, GIMP, Pixelmator, etc. Or you can remove the background and replace it with a solid color.įirst, please note that although Preview has some great features, it is not designed for these types of jobs.

For example, you may want to delete distracting details. There can be various reasons why you may want to remove the background. This article explains how you can remove a background from a picture using Preview on your Mac.

Edit color in preview mac os x