The 212 MB Investor Deck on a Locked-Down Venue PC
A colleague sends you a 46-slide investor deck that is 212 MB. On your machine it opens in roughly 40 seconds and Slide Sorter scrolling stalls. The deck was assembled from three sources: a corporate template, a marketing deck, and a folder of product videos. On the presenter's laptop the title font renders as plain sans-serif, two videos stutter and restart, and the conference room PC shows a warning about unsupported media. The file must be delivered from a USB drive on an unknown Windows machine with no internet access and no rights to install anything. Marketing insists the title font look identical everywhere. The deck also carries four slide masters nobody on your team created, and 30 of the 46 slides are hidden appendix material that will probably never be shown.
1. You have about 90 minutes before the file goes on the USB drive. What are your first three actions, and why in that order?
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1. Find where the weight actually is. Run File > Info, then check the media by sorting slides by size (File > Info lists largest media, or use Compress Media's summary). Almost always the 212 MB is video, not slides. This decides everything else - you may not need to touch fonts or masters at all.
2. Reduce media at the right quality, not the lowest. Use File > Info > Compress Media and pick a quality that matches the delivery target (a projector or a 1080p screen does not need 4K source video). Cutting video is reversible in the sense that you keep the original file; cutting the appendix is not, so do media first.
3. Delete the four inherited masters and the 30 hidden slides in a copy. Unused masters carry layouts, theme fonts, and embedded media that bloat the file and cause font substitution surprises. Use Slide Master view and delete any master whose layouts no slide uses (check by hovering the layout thumbnails or by scanning the Layout gallery on each slide).
Why this order: each step is cheap and reversible except deletion, and each one shrinks the surface area for the next problem. Compressing before deleting means you spend time on media you were about to remove; embedding fonts before you know the file size means you may push the deck past a size limit the venue enforces.
2. The title font substitutes on the presenter's laptop. What are your realistic options and which do you choose for an offline venue PC?
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Options and their real costs:
- Embed the font (File > Options > Save > Embed fonts in the file). Choose Embed only the characters used unless the deck will be edited downstream - full embedding can add several megabytes per weight. This only works for fonts whose licence permits embedding; if the option produces a file that still substitutes, the font is restricted.
- Switch to a font guaranteed present on a stock Windows install (Calibri, Segoe UI, Arial, Times New Roman). Ugly for brand, but zero risk.
- Convert the title to outlines or an image. Perfect fidelity, but the text stops being text - bad for accessibility, search, and any late edit.
Decision: embed with only characters used and verify by copying the file to a second machine that does not have the font installed, opening it, and reading the File > Options > Save state and the rendered title. If embedding is blocked by licensing, fall back to the nearest stock font and accept the brand deviation - a substituted font on the day is worse than a planned one. Never rely on 'the venue PC probably has it'.
3. The venue PC warns about unsupported media. Diagnose and fix without internet access.
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The warning means the video's codec or container is not one PowerPoint can decode on that machine - typically HEVC/H.265, ProRes, or some .mov and .mkv variants that play on the presenter's laptop only because a codec pack is installed there.
Fix: re-encode to H.264 in an MP4 container. PowerPoint's own Compress Media (or Optimize Compatibility in newer builds) can do this for inserted video; if it cannot, transcode offline with any local tool before the deadline and re-insert. Do not switch to a linked video to 'solve' it - a link breaks the moment the file is on a USB stick and opened on a different drive letter.
Then verify three things on the target machine: the video plays with sound, the poster frame is the one you want, and the playback setting (Automatically vs When Clicked) matches how the presenter will use it. Also confirm the file still plays if Windows Media Player is the default handler - PowerPoint uses its own pipeline, but a machine with restricted media components can behave differently.