How to Create A5 and Half-Letter Slide Sizes in PowerPoint
Question details
The user needs to configure PowerPoint slides exactly to A5 or half-letter sizes and understand how to manage custom dimensions against standard printer margins.

- Product
- PowerPoint
- Device & OS
- not provided
- Scenario
- Designing presentation slides intended for printing or digital viewing in specific smaller paper formats like A5 or half-letter.
- Observed behavior
- Selecting standard named paper sizes may shrink the actual slide content to accommodate default printer margins, requiring exact custom dimension inputs instead.
Verify if your target printer supports A5 or custom paper sizes, and identify its minimum printing margins so your slide content doesn't get cut off during printing.
Set Custom Slide Dimensions Manually
Use exact measurement inputs to bypass the default margin reductions that PowerPoint applies when selecting named paper sizes.
When you choose a named paper size from PowerPoint's built-in options, the software often reduces the actual slide area to accommodate standard printer margins. To achieve true A5 or half-letter slide sizes, you should utilize the Custom Slide Size feature.
For your reference, A5 size is approximately 5.83 x 8.27 inches. Half-letter size is exactly 5.5 x 8.5 inches.
Navigate to the 'Design' tab on the top ribbon menu, and click on 'Slide Size' located in the Customize group on the right side.
Click 'Custom Slide Size...' from the drop-down menu to open the Slide Size dialog box.
In the 'Slides sized for' dropdown, pick 'Custom'. Then, manually type 5.83 in Width and 8.27 in Height for an A5 portrait slide. For a Half-Letter portrait slide, enter 5.5 in Width and 8.5 in Height. Click 'OK'.

Adjust Slide Size to Accommodate Printer Margins
Modify your custom dimensions by subtracting the printer's non-printable margins so your design prints exactly as expected.
Create perfectly sized presentations with WPS Office
WPS Presentation provides a highly intuitive way to set custom slide dimensions for A5, half-letter, or any print requirement. It seamlessly handles custom page setups while retaining full compatibility with Microsoft PowerPoint formats.
- 1. Open your file in WPS Presentation: Launch WPS Office and open your presentation file or create a new blank presentation.
- 2. Access Page Setup: Navigate to the 'Design' tab on the ribbon and click on 'Page Setup'.
- 3. Enter custom measurements: In the Page Setup dialog, select 'Custom' from the paper size dropdown, manually type in your desired A5 or half-letter dimensions, and click 'OK'.

Frequently Asked Questions
Why does PowerPoint shrink my slide when I select standard A4 or Letter sizes?
PowerPoint assumes you intend to print the presentation. When you select a named paper size like Letter or A4, the software automatically scales the slide dimensions down slightly. This ensures that your slide content will fit within the unprintable margin areas common to most standard office printers.
What are the exact dimensions of an A5 page in centimeters?
An A5 page measures exactly 14.8 centimeters in width and 21.0 centimeters in height. In inches, this translates to approximately 5.83 by 8.27 inches.
How do I create a 0.5-inch border around my half-letter slides?
To leave a consistent 0.5-inch unprinted border on a half-letter sheet (5.5 x 8.5 inches), you need to subtract 1 inch (0.5 inches for each side) from both dimensions. Set your Custom Slide Size to 4.5 inches wide by 7.5 inches high.
Will changing my slide size distort the images I have already placed?
It can distort images if the aspect ratio changes significantly. When you change the dimensions via the Slide Size menu, PowerPoint will ask if you want to 'Maximize' or 'Ensure Fit'. Choosing 'Ensure Fit' scales your elements down proportionally, but you may still need to adjust individual image placements manually.




