Quick answer: To send a large PPTX file, upload it to Share Large Video Files (up to 20 GB, no account) and share the download link: the file arrives unchanged. A deck with photos and a short video is about 150 MB, more than most email providers accept.
What is a PPTX file?
PPTX is PowerPoint's presentation format, used for pitch decks, lectures, sales presentations and conference talks. Like DOCX, it is a zip package of slides plus every image, audio clip and video placed in the deck.
Decks become big mostly because of embedded video and full-resolution photos. A conference talk with a few screen recordings or product videos inside can easily reach 500 MB to over 1 GB, far beyond any email attachment limit.
Extensions: .pptx, .ppt.
How big are PPTX files?
| File | Typical size |
|---|---|
| A 20-slide text and chart deck | about 1 to 10 MB |
| A 40-slide pitch deck with photos | roughly 20 to 100 MB |
| A training deck with several embedded videos | roughly 300 MB to 2 GB |
Which apps can send one?
Can you send a deck with photos and a short video (about 150 MB) as an attachment?
| App | Limit | Fits? |
|---|---|---|
| Gmail | 25 MB per email | No, send a link |
| Outlook.com | 20 to 25 MB per email | No, send a link |
| WhatsApp (document) | 2 GB per file | Yes |
| Telegram | 2 GB per file | Yes |
| Facebook Messenger | 100 MB per file | No, send a link |
| Discord (free) | 20 MB per file | No, send a link |
| Slack | 1 GB per file | Yes |
| WeTransfer (free) | 3 GB per transfer | Yes |
| Share Large Video Files | 20 GB per transfer | Send the link anywhere |
Limits from our file size limits by app table, checked against each service's help pages.
How to send PPTX files without changing them
- Open Share Large Video Files in any browser and choose Get a link (or Send by email).
- Drop PPTX files on the upload box, or pick a whole folder. Up to 20 GB and 1000 files per transfer.
- Optional: add a password, a download limit or an expiry under More options.
- Copy the link (or show the QR code) and send it by chat or email. The recipient downloads the original file, byte for byte.
Tips for sending PPTX files
- Embed videos rather than linking them, or send the video files in the same transfer, so nothing goes missing.
- On Windows, PowerPoint's File > Info > Compress Media can shrink embedded video for a lighter copy.
- Include the fonts or a PDF version if the deck uses unusual fonts.
- Send a PDF copy for people who only need to read the slides.
How to open a PPTX file
PowerPoint on Windows, Mac, iPhone and Android. Mac and iPhone: Keynote opens PPTX. Everywhere: Google Slides, LibreOffice Impress and PowerPoint for the web. Embedded videos may play differently outside PowerPoint.
On our download page: the recipient can read a presentation in the page before downloading it, without Office installed (shown when the site's document preview is on). The download is your original file, still editable.
Frequently asked questions
Why is my PowerPoint file so large?
Embedded videos and uncompressed photos account for nearly all of it. Compress the media or link to videos to make it smaller.
Will my embedded videos play on the recipient's computer?
Usually, if they use PowerPoint. MP4 with H.264 is the safest video format to embed. Google Slides and Keynote may handle some videos differently.
How do I send a presentation over 25 MB?
Upload it and share a download link instead of attaching it. The recipient gets the full deck with every video intact.
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