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Supports: PPTX
This tool renders a slide of your PowerPoint deck (.pptx) and packages it into a Windows ICO icon file at the sizes you choose. Know the catch before you start: an ICO icon is tiny — 16, 32, or 48 pixels on a side for most uses, 256 px at the very largest — and the preset sets the icon's height while the width follows the slide's 16:9 shape, so a whole slide scaled to 32 pixels tall becomes an unreadable smudge. Titles, bullet text, and charts vanish; only a bold, simple shape survives. This conversion is worth doing in one situation: when the slide is essentially a logo, a single large letterform, or one clean graphic that you want as an app icon or website favicon. For a readable picture of a slide, use PPTX to PNG instead; for a shareable copy of the whole deck, PPTX to PDF.
An ICO is a container for small images — Windows uses it for desktop icons, file-type icons, shortcuts, taskbar buttons, and favicons, none of which are meant to hold a wall of text. When a slide designed for a projector is downsampled to 32 or 48 pixels tall, paragraphs collapse into a handful of gray pixels. No quality setting fixes this; it is a property of the target size, not the conversion. Two further things are lost in the move to a still image: animations, transitions, and slide timings have nowhere to live in a static icon and are dropped, and speaker notes are never rendered. So pick this conversion only when the visual on the slide would still read on a postage stamp.
| Property | Value |
|---|---|
| Standard | Office Open XML (ECMA-376 / ISO/IEC 29500) |
| Default in | Microsoft PowerPoint since Office 2007 |
| File structure | ZIP archive of XML parts, fonts, and embedded media |
| Carries | Slides, text, shapes, charts, images, animations, speaker notes |
| Best for | Editable presentations — not a display/image format |
| To get an image of a slide | Render to PNG, JPG, or (for icons) ICO |
| Property | Value |
|---|---|
| Origin | Microsoft icon format, introduced with Windows 1.0 |
| Container | One file can hold several images at different sizes and color depths |
| Maximum size | 256×256 pixels |
| Typical sizes | 16, 32, 48, and 256 px cover almost every Windows use |
| Color depth | 1-bit up to 32-bit (8-bit RGBA with alpha transparency) |
| PNG-compressed frames | Supported since Windows Vista (keeps 256 px frames small) |
| Best for | App, file, shortcut, and folder icons; website favicons |
.pptx onto the page or click "+ Add Files" to browse. Drop several decks to convert them in one batch with the same settings.0, which takes the opening slide; raise the value to reach a later one, or switch to "Multiple Screenshots" with a Capture Rate to get a spread across the deck and keep the best. There is no background-colour picker, no render-DPI selector, and no quality preset, colour palette or bit-depth control on an ICO target.Almost never. At 16, 32, or 48 pixels — the sizes Windows actually shows icons at — slide text turns into a few unreadable pixels, and even at the 256 px maximum a text-heavy slide looks cramped. This conversion only produces something usable when the slide holds a simple logo, a single large letter, or a bold graphic. For a readable image of the slide, use PPTX to PNG instead.
The tool renders the deck one slide at a time, so a multi-slide PPTX produces an icon per slide rather than cramming the whole deck into one square; the results come back bundled together. If you only want one specific slide as an icon, delete the others (or save just that slide) before uploading so the output stays simple and you are not left sorting through a dozen icons.
You can choose 16, 24, 32, 48, 64, 128, 180, 192, or 256 pixels. The Windows-standard set is 16, 32, 48, and 256 px, which together cover desktop icons, list views, and high-DPI displays. For a website favicon, 16×16 and 32×32 are the classic sizes; 256 px is the largest the ICO format supports and the best choice for a modern app icon.
They are dropped. An icon is a single still image, so animations, slide transitions, and timings have nowhere to live, and speaker notes are never rendered into the picture — what you get is the slide frozen at its final, static appearance. This is inherent to any image format, not a quirk of the tool. If you need the motion or the notes preserved, keep the file as a presentation or convert PPTX to PDF, which keeps every slide as a selectable, shareable page.
ICO supports an 8-bit alpha channel, and whatever transparency the rendered slide carries comes through as it is — there is no background-colour picker on this page to flatten it against a solid tile, so paint the background into the slide itself if you want one. Fonts are rendered into pixels during conversion, not embedded — so a standard typeface reproduces faithfully, but an unusual font that is not available on the rendering server may be substituted, which mostly matters for text-heavy slides you should not be turning into icons anyway.
Only if the slide is the artwork. If your logo already exists as an image, PNG to ICO or JPG to ICO is the direct route and skips the slide-rendering step entirely. Note that ICO remains the most broadly supported favicon format across browsers — MDN recommends it when cross-browser support matters — so producing a favicon.ico here is a reasonable end goal, provided the source slide is logo-like rather than a busy content slide.
The ICO format itself can bundle several sizes in a single file, and Windows then picks the right one for each context — taskbar, desktop, or high-DPI display. This tool writes the icon at the one resolution you select, so to build a true multi-size favicon.ico you generate each size you need (commonly 16, 32, 48, and 256 px) and combine them into one file with an icon editor. For a single app icon or a modern favicon, though, a lone 256 px ICO is usually enough on its own.
Your file is uploaded over an encrypted connection, the chosen slide is rendered and packaged into ICO on our servers, and the file is deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public. If you need a smaller .ico, the size preset is the only lever the page offers — a 48 px icon costs a small fraction of what a 256 px one does. The main practical limit on a very large deck is upload time, not a fixed slide count.