pdfcosmos

PowerPoint to PDF

Turn your PowerPoint slides into a PDF, privately, without uploading a thing.

Free, fast, and privacy-first.

Convert PowerPoint to PDF

or drag & drop files here

.pptx filesup to 30 filesup to 100 MB each300 MB total

Convert PowerPoint to PDF: free, and nothing gets uploaded

Share a presentation as a PDF that opens anywhere and can't be accidentally edited. pdfcosmos turns a .pptx into a PDF entirely in your browser, so your slides (and anything confidential on them) never leave your device.

You get one page per slide at the deck's own size (16:9 or 4:3). Text, images, coloured shapes, and simple tables render well. Charts, SmartArt, gradients, animations, and transitions may differ or drop, since the slides are drawn in the browser rather than by PowerPoint. Speaker notes and hidden slides aren't included, and pages are placed as images. Convert up to 30 files at once.

  • One page per slide

    At the deck's own 16:9 or 4:3 size. Hidden slides and speaker notes are left out.

  • Nothing is uploaded

    Slides are rendered in your browser and never sent to a server.

  • .pptx presentations

    Save an older .ppt as .pptx first. Text, images, and shapes come through well.

  • Best-effort, stated plainly

    Charts, SmartArt, gradients, and animations may differ or drop. No surprises.

How to convert PowerPoint to PDF

  1. Add your PowerPoint file(s)

    Drop one (or up to 30) .pptx files into the upload area.

  2. Convert

    Click “Convert to PDF”. Each slide is rendered and turned into a PDF page, right in your browser.

  3. Download

    Download your PDF (a ZIP for several). Nothing is ever uploaded.

Frequently asked questions

Are my PowerPoint files uploaded to a server?
No. The conversion runs entirely in your browser. Your presentations never leave your device. You can confirm it in your browser's Network tab: no file data is sent.
Which PowerPoint formats are supported?
Modern PowerPoint presentations: .pptx. The older binary .ppt format and OpenDocument .odp aren't supported. To keep everything private and in your browser, we don't upload to a conversion server. If you have a .ppt, open it in PowerPoint and save it as .pptx first.
Will the PDF look exactly like my slides?
It's a close, best-effort rendering: text, images, colored shapes, and simple tables come through well. Charts, SmartArt, gradients, theme colors, animations, and slide transitions may differ or be dropped, because the slides are rendered in your browser rather than by PowerPoint itself.
How many pages will the PDF have?
One page per slide, at the presentation's own size (widescreen 16:9 or standard 4:3). Speaker notes and hidden slides aren't included, just the slides as they appear.
Can I select or search the text in the PDF?
Not in this version. Each slide is placed as a high-resolution image, so the PDF looks like your deck but the text isn't selectable. This keeps the conversion fully private and in your browser.
Can I convert several presentations at once?
Yes. Queue up to 30 presentations in one go. A single deck comes back as one PDF. Several decks arrive bundled in a ZIP.
Is it free?
Yes, it's completely free to use, with no sign-up and nothing to install.