Exporting a deck takes one click. Whether the links work, the notes come along and the file stays a sensible size depends on three settings behind it.
Export, do not print
These produce different files and the difference is not cosmetic.
Print to PDF sends the slides through a print driver. The output is a flat rendering — hyperlinks gone, text sometimes rasterised, accessibility tags absent. It is the fastest way to get a PDF and the most lossy.
Save As or Export to PDF writes the file directly. Links survive, text stays text, and the structure tags that screen readers rely on are preserved.
If links in your exported deck do not work, this is almost always why. It is also why a deck exported on one machine has working links and the same deck "printed" on another does not.
The settings that matter
| Setting | Effect |
|---|---|
| Publish what: Slides | One slide per page, no notes |
| Publish what: Notes pages | Slide at the top, notes beneath |
| Publish what: Handouts | Multiple slides per page |
| Document structure tags | Keeps links and screen reader access |
| Standard vs Minimum size | Minimum downsamples images hard |
| Include hidden slides | Off by default — check before sending |
The hidden slides default catches people out in both directions. A deck with backup slides exports without them, which is usually right; a deck where someone hid a slide to skip it in a rehearsal exports without that too, which is usually not.
Notes pages, and their one flaw
Exporting as Notes pages puts a small slide image at the top of each page with the speaker notes beneath. It is the right format for a handout or for sending a deck someone has to follow without you presenting it.
The flaw is that the slide image is small — roughly a third of the page — and text sized for a projected slide becomes genuinely hard to read at that scale.
If the notes matter more than the slides, that is fine. If both matter, export twice: slides at full size for reading, notes pages for the commentary. Merging the two with Merge PDF gives one document with the full-size deck followed by the annotated version.
Why the PDF is so much bigger
A 4 MB deck routinely becomes a 30 MB PDF, which looks like a bug and is not.
PowerPoint stores each image once and references it wherever it appears. It also stores effects — shadows, glows, transparency, gradients — as instructions to be rendered live. A PDF cannot express most of those, so the exporter flattens the affected areas into images. A slide with a drop-shadowed photograph over a gradient background can become a single full-slide bitmap.
- A logo on every slide may be embedded once in the deck and flattened into thirty slide images in the PDF.
- Transparency and blend modes force rasterisation of everything beneath them.
- Full-bleed background images are re-encoded per slide.
- Embedded video is dropped entirely, leaving a poster frame.
Compressing afterwards works well precisely because the result is now mostly images — at 150 DPI a bloated deck usually loses 70–80% with nothing visible gone. How to compress a PDF without losing quality covers the settings.
Presenting from the PDF
A PDF makes a perfectly good presentation file, and is more reliable than the deck in one specific way: it cannot reflow, re-substitute fonts or fail to find a linked video on someone else's machine.
Every reader has a full-screen mode — Ctrl+L in Acrobat, Cmd+Shift+F in Preview — that behaves like a slideshow. Arrow keys advance.
What you lose is animation, transitions, embedded media and presenter view. If the deck depends on builds to make its argument, export it with each build as a separate slide; if it does not, the PDF is the safer file to carry to a venue whose equipment you have not seen.
Frequently asked questions
Why do my hyperlinks stop working in the PDF?
You used Print to PDF rather than Save As or Export. Printing sends the slides through a print driver, which produces a flat rendering with no links and no accessibility tags. Export writes the file directly and preserves both.
How do I include speaker notes?
In the export dialog, set "Publish what" to Notes pages. Each page gets a small slide image with the notes beneath. The slide is roughly a third of the page, so text sized for projection becomes hard to read — export slides separately if both matter.
Why is the PDF so much bigger than the PowerPoint?
Because effects PowerPoint renders live — shadows, transparency, gradients — cannot be expressed in PDF, so the exporter flattens those areas into images. A logo stored once in the deck can become thirty slide images. Compressing afterwards recovers most of it.
Do hidden slides get exported?
Not by default. That is usually right for backup slides and usually wrong for a slide someone hid to skip during a rehearsal. There is a checkbox in the export dialog — worth glancing at before sending.
Can I present directly from a PDF?
Yes. Every reader has a full-screen mode that behaves like a slideshow with arrow-key navigation. You lose animations, transitions, embedded media and presenter view, but you gain a file that cannot reflow or substitute fonts on unfamiliar equipment.
What happens to embedded video?
It is dropped, leaving the poster frame as a static image. PDF can carry embedded media in principle but PowerPoint export does not produce it, so plan on linking to the video rather than expecting it to travel.