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Supports: ODP
ODP (OpenDocument Presentation) is the slideshow format in the OpenDocument Format family, developed by the OASIS consortium and standardized as ISO/IEC 26300 (approved as an international standard in 2006; the current ODF 1.2 revision is ISO/IEC 26300-1:2015). It is the default save format of LibreOffice Impress and Apache OpenOffice Impress, and Google Slides can export to it. Under the hood, an .odp file is a ZIP archive of XML documents describing the slides, styles, and embedded media.
The format is open and well-supported, but it isn't what every audience or tool expects — which is the usual reason people convert it:
.odp directly, but round-tripping through Office can shift formatting because ODP and PowerPoint support different feature sets. If you mainly need the text, converting ODP to DOCX pulls the outline into Word cleanly.| Property | ODP | PPTX | |
|---|---|---|---|
| Full name | OpenDocument Presentation | Office Open XML Presentation | Portable Document Format |
| Standard / origin | OASIS; ISO/IEC 26300 | Microsoft; ISO/IEC 29500 | Adobe; ISO 32000 |
| File structure | ZIP of XML | ZIP of XML | Fixed page-description format |
| Editable slides | Yes | Yes | No (fixed layout) |
| Native app | LibreOffice / OpenOffice Impress | Microsoft PowerPoint | Any PDF viewer |
| Best for | Open-source editing | PowerPoint editing | Sharing, printing, archiving |
| Keeps animations | Yes | Yes (within PowerPoint) | No — flattened to static pages |
ODP files open in LibreOffice Impress and Apache OpenOffice Impress (where ODP is the default format), and they import into Google Slides. Microsoft PowerPoint can also open and save .odp directly. If the recipient has none of those, converting to PDF is the safest bet — a PDF opens in any browser, phone, or PDF reader with no presentation software at all.
Converting to PDF flattens every slide to a static page, so animations, slide transitions, and embedded video are dropped — a PDF is a fixed-layout document, not a slideshow. Even moving ODP into PowerPoint's PPTX format can shift or lose animations, custom themes, and SmartArt, because ODP and PowerPoint don't support an identical feature set. If preserving motion matters, keep the original ODP and present it in Impress; convert only the copy you need to share.
It depends on what they need to do. If they only need to view, comment on, or print the deck, send a PDF — it always looks identical and needs no software. If they need to edit the slides, note that PowerPoint can open .odp natively, so you often don't need to convert at all; when a clean PPTX is required, expect minor formatting shifts on complex slides and budget a few minutes to touch them up.
ODP to DOCX is designed to bring the slide text and outline structure into Word, which is ideal for repurposing a deck as written notes or a script. Complex slide graphics, precise positioning, and animations don't translate to a flowing Word document, so treat DOCX as a text-and-outline export rather than a pixel-perfect copy. If you need the visuals intact, export the slides as images with ODP to PNG instead.
There's no fixed per-file cap and no quantity limit on batches, so image-heavy decks convert fine. Because the work runs on our servers, the practical limit is your upload size and connection speed rather than your device — very large presentations simply take longer to upload. Decks with many high-resolution photos are the usual reason an ODP balloons in size; choosing a lighter Compression Type when exporting to PDF brings the output back down.
Your ODP file is uploaded over an encrypted connection, converted on our servers, and deleted automatically after a few hours. There's no sign-up, no watermark on the output, and files are never shared or made public. In our testing, a typical 15-slide ODP with a few embedded photos converts to a PDF in a couple of seconds and lands a few hundred kilobytes to a couple of megabytes, depending on the Compression Type you pick.