You rehearsed it twice last night. Every slide landed where it should. Then you plug into the venue’s computer forty minutes before doors open, and your headline font has turned into Calibri, a title now wraps onto three lines, and your video is a black box.
Nothing in your file changed. The machine did.
It is one of the oldest problems in live presenting, and almost none of it is bad luck. A deck built on your laptop makes quiet assumptions about the computer it will run on. The venue’s computer doesn’t share them. Here is what breaks, why, and the short list I run through before any client’s deck leaves my hands.
Why it happens
A presentation file doesn’t carry everything it needs. It carries instructions, and the computer fills in the rest. When the venue’s machine fills them in differently, you see the difference on a thirty-foot screen.
Your fonts aren’t installed there. PowerPoint stores the name of a font, not the font itself, unless you embed it. If the venue computer doesn’t have it, PowerPoint quietly swaps in something it does have. The new font is a different width, so lines rewrap, titles push into images, and your careful spacing falls apart. Google Fonts used in Google Slides cause the same trouble once the deck is downloaded as a PowerPoint file.
Some fonts refuse to travel. Embedding solves most of this, but not all. A font’s license can block embedding, and PowerPoint will gray out the option or skip that font without much warning.
Your video is linked, not inside the file. If a video points to a folder on your laptop, it has nothing to play on a USB stick. A video in an unusual format may also need software the venue computer doesn’t have.
The software is a different version. Newer effects such as Morph need a recent version of PowerPoint. On an older install they fall back to a plain transition, or the slide behaves in ways you never rehearsed.
You built it in Keynote. If you design on a Mac and the venue runs PowerPoint on Windows, you have a conversion problem on top of everything else here. I cover that in Keynote Talk, PowerPoint Venue.
The screen isn’t the shape you designed for. Most stages now run 16:9, but some rooms still have 4:3 projectors, and large events increasingly use wide LED walls. Design for the wrong shape and you get black bars, or a slide stretched across a screen it was never built for.
Your deck was merged into someone else’s. Many events load every speaker into one master file. When slides are pasted into another deck without keeping their source formatting, they take on that deck’s theme: its fonts, its colors and sometimes its layouts.
You lose your notes. Some podiums show only a confidence monitor with the current and next slide. If you rely on speaker notes in Presenter View, check that you will actually have it.
The week-before checklist
Most of this is fixed with one email and twenty minutes of work. Do it a week out, not the night before.
- Ask the event team five questions. Will I present from my own laptop or yours? Which software and version is on the stage computer? What shape is the screen? Will I have Presenter View or only a confidence monitor? When is the file due, and will it be merged into a master deck?
- Build to the answers. Set the slide size to match the screen before you design, not after. Resizing a finished deck shifts everything on it.
- Embed your fonts. In PowerPoint, turn on “Embed fonts in the file” in the Save settings and choose to embed all characters. If a font can’t be embedded, replace it with one that can, or set the headline that uses it as an image.
- Put your videos inside the file. Insert them rather than linking them, and use MP4. Then play every one from the copy you are sending, not the copy on your desktop.
- Remove anything that needs your laptop. Live web pages, add-ins and files stored elsewhere all assume a computer the venue doesn’t have.
- Open the file on a different computer. A colleague’s Windows laptop is ideal. Click through every slide in Slide Show, not just the editing view. This one test catches most of what goes wrong on stage.
- Export a PDF. It loses animation and video, but it looks the same on every machine. It is the version you fall back on when nothing else works.
- If they are merging decks, say so in writing. Ask the producer to keep your source formatting when they bring your slides in, and send the PDF so they can see how each slide should look.
On the day
The tech check is your last chance to catch what the checklist missed. Treat it as a rehearsal of the file, not of the talk.
- Click through the whole deck on the stage computer. Watch for rewrapped titles, missing images and fonts that look slightly off. A swapped font is easiest to spot in your largest headlines.
- Play every video with sound. Audio is the thing most often left untested.
- Look at the slides from the back row. What reads well on a laptop can disappear on a large screen, especially thin type and low-contrast colors.
- Check what you can see from the stage. Find the confidence monitor and confirm it shows what you expect.
- Carry three copies. The PowerPoint file on a USB stick, the same file in cloud storage you can reach from any browser, and the PDF. If your laptop is allowed on stage, bring its adapter too.
If something is broken and there is no time to fix it, switch to the PDF. A clean, still slide is far better than a beautiful one that falls apart while three hundred people watch.
The real fix
Everything above is damage control. The better approach is a deck designed from the start to run on a computer you have never seen: fonts chosen because they travel, video built in rather than linked, a layout that holds when the screen changes shape.
That is how I build every keynote. Before a single slide is designed, I ask where it will be shown and on what. Then I test the finished file on a machine that isn’t mine before it goes to the event team.
If you have a talk coming up and would rather not find out at the tech check, book a discovery call. I will look at your deck, tell you what is likely to break, and give you a fixed quote to make it stage-ready.