How to Make Your PowerPoint Slides Look Better

Most slides look unprofessional for the same few reasons: too much text, too many fonts and colors, edges that almost line up, and charts straight from the default template. That's good news, because each one has a quick fix, whether the deck is a quarterly review, a class presentation or a client pitch.

Quick answer. To make PowerPoint slides look better, put one idea on each slide and write it as the headline, use one font family in two or three sizes, align every element to the same margins, leave generous white space, limit the palette to neutrals plus one accent color, and simplify charts to the one comparison that matters. To redesign a whole deck at once, upload it to an AI tool such as Playyy's Revamp slides.

1. Put one idea on each slide

The single biggest change is editorial, not visual. A slide that tries to say five things forces the audience to read while you talk, and they end up doing neither well.

Write the slide's conclusion as its title. "Q3 Marketing Results" is a label; "Trial signups grew 42% in Q3" is a point. Everything else on the slide should support that sentence. Details that don't belong to it move to speaker notes or to the next slide. A section with three distinct points becomes three slides, and the deck still runs the same length in minutes.

The UC San Diego multimedia team's evidence-based presentation design recommendations suggest using no more than four bullets per slide and splitting content across more slides when needed, because on-screen text that repeats the narration adds extra processing for the viewer. Shorter slides are easier to design, too.

2. Build a clear type hierarchy

Professional slides use type size to tell the eye what to read first. Pick one font family, ideally a clean sans serif such as Arial, Helvetica, Calibri or Inter, and set three levels:

• Headline: large and bold, roughly 36 to 44 pt, one line where possible.
• Supporting text: 20 to 28 pt, regular weight.
• Labels and sources: 14 to 18 pt in a softer gray.

A common rule of thumb keeps body text at 18 pt or larger so it stays readable from the back of a room. Left-align body text; centered paragraphs make every line start in a different place. When a number is the point, make the number the biggest thing on the slide.

The example above keeps every figure from the original slide. The redesign only changes the order the eye takes: the headline states the result, three cards hold the three numbers, and the next steps move to speaker notes.

3. Align everything to the same grid

Slides that look "off" usually have edges that almost line up. Set fixed margins, around 5% of the slide width on every side, and snap text boxes, images and shapes to them.

In PowerPoint, turn on View → Guides and use the smart guides that appear while dragging. Select several objects and use Shape Format → Align to align their left edges or tops, and Distribute Horizontally to space cards evenly. Repeat the same positions on every slide of the same type, so a title always sits in the same place and the deck feels designed as a set.

4. Leave white space on purpose

White space is the empty area around and between elements, and it's what makes a slide look calm and expensive. A useful target is to leave about a quarter of the slide empty. Group related items close together and put more space between unrelated groups; the spacing alone tells the audience what belongs together.

When a slide feels crowded, resist shrinking the font. Cut words, split the slide, or move a block to speaker notes instead.

5. Limit the palette and check contrast

Choose one accent color, usually from your brand, and build the rest from neutrals: white or off-white backgrounds, near-black text, and one or two grays. Use the accent only where you want attention, such as the key number, the highlighted bar or the call to action. A deck that uses five colors evenly reads as noise.

Contrast matters for readability on projectors, which wash colors out. The WCAG 2.1 contrast guideline sets a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text. Dark text on a light background clears that easily; light gray on white and colored text on colored photos often fall short.

6. Simplify every chart

Default charts arrive with gridlines, legends, 3D effects and a different color for every bar. Each of those makes the reader work harder to find the point. Simplify in this order:

1. Write the chart's takeaway as the slide title.
2. Remove gridlines and 3D effects, and lighten the axis.
3. Label values directly on the bars instead of using a legend where you can.
4. Color everything gray except the one series or bar the title talks about.

Both versions above show the same eight numbers. Only the second tells the audience which one matters.

7. Use images that carry meaning

Large, high-resolution photos of your actual product, team or subject look far better than clip art or stock icons used as decoration. UCSD's recommendations, drawing on Richard Mayer's research on multimedia learning, advise against decorative images because viewers often remember them better than the core content. Keep images that explain something: a product shot, a screenshot, a diagram, a photo of the place you're talking about.

Let photos run to the edge of the slide or fill a clean half of it, and avoid stretching them. Enlarging an image past its original size makes it pixelated on a big screen.

8. Keep one template across the deck

Consistency is what separates a designed deck from a set of slides. Set fonts, colors and placeholder positions once in View → Slide Master, then build every slide from those layouts. When a slide needs fixing, Format Painter copies formatting from a slide that already looks right. Before presenting, flip through in slide sorter view: any slide that looks different from its neighbors is the one to fix.

The opening and closing slides deserve extra care, since they're on screen the longest. Our guide to the first and last slide of a presentation covers what to put on both.

What the 7x7 and 5/5/5 rules mean

Both are text limits. The 7x7 rule (often called the 7 7 7 rule) allows about seven words per line and seven lines per slide, with many versions adding no more than seven text slides in a row. The 5/5/5 rule tightens it to five words, five lines and five text-heavy slides in a row. Treat them as warning lights rather than targets: if a slide breaks them, it usually holds more than one idea, and the fix from step 1 applies.

How to use Designer in PowerPoint

PowerPoint's Designer, labeled Design Ideas or Design Suggestions depending on the version, suggests finished layouts for the slide you're working on. It's a fast way to make a single slide look good, especially one with a photo, a list or a chart.

1. Open the slide and go to the Design tab.
2. Select Designer (or Design Suggestions). A pane opens with layout options.
3. Click a suggestion to apply it, then adjust text and images as usual.

According to Microsoft's Designer support page, desktop Designer is a Microsoft 365 subscriber feature, while PowerPoint for the web offers design suggestions to everyone. It needs an internet connection and works best on slides that use a built-in PowerPoint theme and the Title or Title + Content layout, with up to four photos per slide and the content itself as the only objects on it. Designer works one slide at a time, so for a whole deck it pays to pair it with a consistent slide master.

Redesign a whole deck with Revamp slides

Playyy's Revamp slides redesigns an existing presentation for you: upload a PPTX or PDF, and Playyy returns a new, editable deck with a fresh visual design that keeps your original wording, figures and content images. It's the same process as the steps above, applied to every slide at once.

Here's how it works. The AI reads each slide's copy, numbers, tables and images, then plans the new pages. Thin slides that share one point can be merged and overloaded slides split, while every point from the source still lands somewhere in the new deck. Before it designs, Playyy asks which style and colors you want, and if you've set up a brand kit, your colors, fonts and logo carry through. Decorative backgrounds from the old file are replaced with imagery that fits the new style.

The result opens on Playyy's editable canvas, so you can change any headline, swap an image or adjust a chart, then export the deck as PPTX to keep presenting in PowerPoint, or as PDF. To build a new deck from a brief or notes instead, the AI presentation maker starts from scratch. And when the content still lives in a Word document, see how to convert Word to PowerPoint first.

Make the next deck look good from the start

Three habits do most of the work: one idea per slide with the conclusion as the title, one font family and one accent color applied through the slide master, and charts reduced to the comparison that matters. For more layouts and slide formats to borrow, browse these presentation ideas. When an existing deck needs a full makeover rather than a slide-by-slide cleanup, upload it to Revamp slides in Playyy and edit the redesigned version.