How to Change PowerPoint to Portrait Orientation

Most presentations default to landscape mode — the wide, horizontal layout that fills a projector screen or monitor. But portrait orientation has genuine practical uses: printed handouts, posters, phone-friendly slides, academic reports, and infographic-style decks all work better in a vertical format. Switching PowerPoint from landscape to portrait is straightforward, but a few variables determine exactly how it behaves — and whether your existing content survives the change cleanly.

What "Portrait Orientation" Means in PowerPoint

PowerPoint slides are built on a canvas with defined dimensions. The default widescreen layout is 13.33 inches wide by 7.5 inches tall (16:9 ratio). Portrait orientation flips that relationship — the slide becomes taller than it is wide, typically 7.5 inches wide by 10 inches tall, matching a standard vertical page.

This isn't just a visual rotation. PowerPoint actually redraws the canvas dimensions, which means any text boxes, images, and design elements placed on your slides will shift position based on the new proportions.

How to Change Slide Orientation in PowerPoint (Desktop)

The process is nearly identical across Windows and Mac versions of PowerPoint:

1. Open your presentation.
2. Go to the Design tab on the ribbon.
3. Click Slide Size (on the right side of the ribbon).
4. Select Custom Slide Size from the dropdown.
5. In the dialog box, under Orientation, choose Portrait under the Slides section.
6. Click OK.

PowerPoint will then ask how you want to handle the scaling of existing content:

• Maximize — keeps content at its current size, which often means elements get cropped or pushed off-canvas.
• Ensure Fit — scales content down to fit within the new dimensions, which can make text and images smaller than intended.

Neither option is automatically "correct." Which one works better depends entirely on how much content is on your slides and how tightly it's laid out.

How to Change Orientation in PowerPoint for the Web

The web version of PowerPoint (via Microsoft 365 in a browser) has more limited layout controls than the desktop app. As of recent versions, you can adjust slide size through:

1. Click the Design tab.
2. Select Slide Size → Custom Slide Size.
3. Adjust the width and height values manually, and set orientation to Portrait.

The interface mirrors the desktop version, though some advanced layout options may be absent depending on your subscription tier and browser.

Portrait Orientation on PowerPoint for Mobile (iOS and Android) 📱

The PowerPoint mobile app is primarily a viewing and light-editing tool. Full slide dimension controls are limited or unavailable depending on your device and account type. For significant orientation changes, the desktop or full web version is the more reliable path.

If you're creating a presentation specifically for mobile viewing — such as a vertical story-style format — it's worth designing from scratch in portrait mode rather than converting an existing landscape deck.

What Happens to Your Existing Slides After Switching

This is where most people run into trouble. When you switch from landscape to portrait:

• Text boxes may overflow their original boundaries or overlap other elements.
• Images may appear stretched, cropped, or repositioned unexpectedly.
• Slide themes and backgrounds designed for 16:9 layouts often look awkward in portrait format.
• Charts and tables may compress in ways that affect readability.

The more complex and content-heavy your existing slides, the more manual cleanup you'll likely need after switching. For simple slides with minimal content, the transition is usually clean. For dense, visually designed decks, expect to spend time repositioning elements.

Mixing Portrait and Landscape Slides 🖼️

One question that comes up frequently: can you have some slides in portrait and others in landscape within the same PowerPoint file?

The short answer is no — not natively. PowerPoint applies one orientation to the entire presentation. All slides share the same canvas dimensions.

There are workarounds:

• Embed an image of a portrait-formatted slide into a landscape slide to simulate the effect.
• Use two separate files and present them back-to-back.
• Use PowerPoint sections with different templates — though this still doesn't change the underlying canvas dimensions per slide.

Some users achieve a visual mixed-orientation effect by placing portrait-proportioned content areas on landscape slides, but this is a design workaround, not a true orientation change.

Common Use Cases That Drive the Switch

The Variables That Shape Your Experience

How smoothly this process goes — and whether portrait orientation actually serves your needs — depends on several factors specific to your situation:

• How much existing content is on your slides and how tightly it's arranged
• Which version of PowerPoint you're using (desktop, web, or mobile)
• Whether you're designing from scratch or converting an existing deck
• Your final output format — screen presentation, print, PDF export, or social media
• Whether your template or theme was built for landscape and how it responds to reorientation

A blank deck switching to portrait is a five-second task. A 40-slide branded presentation with complex layouts switching mid-project is a different proposition entirely — and the right approach depends on how much of that content you're willing to restructure.