Convert PowerPoint (PPTX) to PDF
Free online converter for PowerPoint (PPTX) files. Fixed-layout format for sharing and printing. Nothing to install, no watermark, and every file is deleted automatically.
Drag and drop your files
or
Upload a PowerPoint (PPTX) file to convert it to PDF. Up to 3 files at once, 100 MB each.
Free · up to 3 files · 100 MB each · files deleted automatically after 1 hour.
About PPTX and PDF
PowerPoint (PPTX) .pptx
PowerPoint's modern format — zipped XML holding slides, layouts, media and transitions.
Good for
- Fully editable slides, layouts and speaker notes
- Carries embedded media and transitions
- The default for presentations nearly everywhere
Trade-offs
- Fonts and layout shift on machines without the same typefaces
- Large once video and images are embedded
- Animations rarely survive conversion to anything else
application/vnd.openxmlformats-officedocument.presentationml.presentation
PDF .pdf
A fixed-layout page format. A PDF describes exactly where every glyph and line sits, so it looks identical everywhere — which is precisely what makes it awkward to edit.
Good for
- Identical layout on every device, screen and printer
- Embeds its own fonts, so nothing reflows or substitutes
- The accepted format for contracts, invoices and forms
Trade-offs
- Not built for editing — text is positioned, not flowing
- A scanned PDF is just images until text recognition is run
- Reflows badly on small screens
application/pdf
PPTX and PDF side by side
| PPTX | ||
|---|---|---|
| Compression | Zipped XML | Mixed — per object |
| Transparency | n/a | Yes |
| Animation | Yes — slide transitions | No |
| Typically used for | Presentations still being edited | Contracts, invoices, forms, anything printed |
What changes when you convert PPTX to PDF
It stops being editable
A PPTX is a document that reflows — text finds its own line breaks depending on the fonts and page size available. A PDF fixes every glyph in place. That is exactly why PDF is the format you send someone, and exactly why it is the wrong format to keep working in. Hold on to the PPTX as your editable master.
Rendered by LibreOffice
The conversion runs through headless LibreOffice — the same engine behind the desktop suite, not a lookalike parser. It handles ordinary documents faithfully. Where it can drift is on the elaborate: a document leaning on fonts the server does not have will have them substituted, and the substitute rarely occupies exactly the same width, so line and page breaks can move. Heavily designed layouts are worth checking against the original.
One slide per page, and no motion
Each slide becomes a page. Transitions, builds and animations have no representation in a PDF, so anything that appeared on a click is rendered in its final state — which means an overlapping build can print as overlapping text. Speaker notes are not included in the pages.
Other PowerPoint (PPTX) conversions
Other ways to get PDF
Worth reading next
Converting presentations without breaking them
A slide deck carries more than the slides. Knowing which parts have somewhere to go in the destination format is the difference between a clean conversion and finding out on stage.
5 min read
Word to PDF: what survives, what moves and what disappears
The conversion that looks simplest is the one that quietly shifts a line break and pushes your last paragraph onto a page of its own. Here is what actually happens, and what to look at afterwards.
5 min read