Turn a PowerPoint into a PDF without installing anything
Sending the .pptx is how a deck arrives with the wrong fonts, a shifted logo and half a chart missing. A PDF arrives the same everywhere — and it is also the only format everyone can open.
Why a PDF for a deck
A .pptx trusts the other computer: it assumes the same fonts are installed, the same PowerPoint version, sometimes the same screen size. A PDF carries the drawing with it, so what the other person opens is what you saw.
It also stops accidents: nobody edits your slides by mistake, and the file cannot ask to enable macros. For sending a deck to a client, to a jury or to a printer, PDF is the right answer.
What a PDF keeps and what it drops
It keeps everything visible: slide size and orientation, positions, colours, pictures, tables, charts and the text, with one page per slide. Hidden slides are left out, which is what you want when exporting.
It drops what only exists while you present: animations, transitions, embedded video and audio, and the speaker notes unless you explicitly export them as handouts.
Fonts deserve a line of their own. If a converter cannot embed your exact font, it replaces it with the closest one. A careful tool then writes the text with the same average width, so the lines still break where they broke and nothing overflows its box; the letter shapes change, the layout does not. Anyone promising an identical copy without your fonts is promising something the format cannot do.
Check it before you send it
Look at the page count first: one page per visible slide. If there are fewer, some slide was hidden; if there are more, something split.
Then check the slides that carry the risk: the one with the widest table, the one with a chart and the one with a font you only have because you installed it. Thirty seconds of looking saves an embarrassing email.
Finally, check the size. A deck full of photographs can come out at 40 MB; compressing the PDF afterwards usually brings it down to a few megabytes without a visible change on screen.
Do it in the browser
PowerPoint to PDF in CLEKARA reads the .pptx and draws every visible slide as a page of the same size, in your browser: nothing is uploaded, there is no account, and the result carries no watermark.
If your file is an old .ppt (PowerPoint 97–2003), open it in PowerPoint or LibreOffice Impress and save it as .pptx first: the old format is a different, binary container and it has to be converted before anything can read it.