In PowerPoint for the web, you can do basic background formatting of one or more slides with a solid color or a picture. To do more advanced formatting, such as adding a color gradient or making a picture transparent, use the desktop version of PowerPoint on Windows or macOS.
You can fill the background with a solid color. PowerPoint for the web doesn't support gradient fills for slide backgrounds.
If you want gradient fills in PowerPoint for the web, please provide feedback. For more information, go to How do I give feedback on Microsoft Office?
On the Design tab, select Background.
Select Solid Fill, and then pick a color from the gallery.
(To reset the background to its previous state, select Home > Undo
.)
If you want all slides to have this same background color, on the Design tab, select Background > Apply to All.
When you insert a picture as a background, PowerPoint for the web resizes the image as best as it can to fill the entire area of the slide. For best results, choose a picture that has the same orientation as your slides.
- On the Design tab, select Background.
- Select Insert Picture, then under Picture Background, select either This Device (to select your own picture) or Stock Images (to select a picture from the Microsoft image library).
- Navigate to the picture you want to use. Select it, then select Open or Insert.
- To make all slides have this same background picture, on the Design tab, select Background again, then select Apply to All.
PowerPoint for the web supports the following picture formats: .jpg, .jpeg, .png, .gif, .bmp, .wmf, .emf, .tif, and .tiff.
PowerPoint for the web doesn't have the ability to make a picture transparent. Use the desktop PowerPoint app if you want to make a background picture transparent.
PowerPoint for the web doesn't have the ability to remove a picture's background. Use the desktop PowerPoint app to remove a picture's background.
Remove a slide background
You can remove whatever slide background you currently have by resetting to a solid white background:
On the Design tab, select Background.
Select Solid Fill, then pick White, Background 1 at the upper corner of the color gallery.
Apply a comprehensive design theme to your presentation
PowerPoint for the web comes with themes—sets of professionally designed colors, layouts, and fonts. After you select a theme, all your slides adopt that look. For more information, go to Design a presentation with PowerPoint for the web.