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Supports: ODP
ODP is a multi-slide presentation document (the OpenDocument format used by LibreOffice and OpenOffice Impress); ICO is the Windows icon container, where each image is at most 256×256 pixels. This converter renders the first slide of your presentation to a raster image and packs it into an icon — handy when a slide holds a logo or mark you want as an app icon or favicon, but not a way to view the slides themselves.
A presentation slide is large and text-heavy; an icon is tiny. When the first slide is shrunk to 256×256 or smaller, any body text becomes unreadable, so the result only works when the slide is essentially a single graphic — a logo, a symbol, or a bold title card. There is no slide picker here: the tool always renders the first slide, so put the artwork you want on slide one before converting.
If your goal is a readable copy of the deck, this is the wrong tool. Use Convert ODP to PDF to keep every slide sharp and selectable, or Convert ODP to PNG (or ODP to JPG) to export a full-size slide image you can actually look at.
| Property | Value |
|---|---|
| Standard | OpenDocument Presentation, OASIS ODF, ISO/IEC 26300 |
| Released | ODF 1.0 in 2005; ISO 26300-1:2015 covers ODF 1.2 |
| Structure | ZIP archive of XML (slides, styles, settings) plus embedded media |
| Native apps | LibreOffice Impress, Apache OpenOffice Impress |
| Contains | Multiple slides, text, images, charts, shapes, transitions, speaker notes |
| Best for | Editable, vendor-neutral presentations; open-source and archival workflows |
| Property | Value |
|---|---|
| Format | Windows icon container, introduced with Windows 1.0 |
| Maximum image size | 256×256 pixels |
| Common sizes | 16×16, 32×32, 48×48, 256×256 (one file can hold several) |
| Color depth | Up to 32-bit with an 8-bit alpha (transparency) channel |
| Native support | Windows Explorer, shortcuts, .exe icons; favicons in all major browsers |
| Best for | App icons, desktop shortcuts, website favicons |
It renders the first slide of the presentation. There is no slide-selection control on this tool, so move the logo, mark, or title card you want as the icon to slide one before uploading. To export a different slide as a full image instead, use ODP to PNG.
Because an ICO image is at most 256×256 pixels. A full presentation slide scaled down that far loses fine detail, so body text turns to a blur. Icons are meant for app, shortcut, and favicon use, not for reading content. If you need legible slides, export to PDF or a full-size PNG instead.
The ICO container format supports bundling multiple sizes (commonly 16×16, 32×32, 48×48, and 256×256) so Windows can pick the right one per context. This converter produces an icon at the single resolution preset you choose; if you need a multi-resolution favicon set, generate the largest size here and assemble the variants in a dedicated icon tool.
This conversion flattens the slide onto the background color you pick under "Image Transparency," so the result is opaque rather than transparent. ICO itself supports a 32-bit alpha channel, but because a rendered slide usually fills the whole frame, a solid background gives a cleaner icon than a partial cut-out.
No. ODP is the OpenDocument presentation format governed by the open ISO/IEC 26300 standard and is native to LibreOffice and OpenOffice Impress; PPTX is Microsoft's format. They cover similar ground and convert between each other, but ODP is the vendor-neutral, open-standard option often required in public-sector and archival settings.
For a modern favicon, choose the 256P preset and let the browser scale it down, or pick 32P for a classic taskbar-style icon. In our testing, a single-graphic title slide rendered at the 256P preset produced a clean favicon, while the same slide at 16P lost everything except its dominant shape and color.
Yes. Your ODP is sent over an encrypted (TLS) connection, converted on our servers, and deleted automatically after a few hours. Files are never shared, made public, or used for anything beyond producing your download — no account or sign-up required.