ODT to ICO Converter

Convert ODT to ICO: What This Guide Covers

ODT is the OpenDocument Text format — an editable, multi-page word-processing document. ICO is the Windows icon container, designed to hold small square pictures for favicons, application icons and shortcuts. This guide walks through the conversion honestly: each page of the document is rasterized and shrunk to icon dimensions, which works beautifully if page one is a logo or a monogram, and produces an unreadable grey square if page one is prose. It also covers the one technical trap that catches people out — the preset list sets the icon's height, and on a landscape page the resulting width can quietly overshoot what an ICO file is able to describe.

How to Convert ODT to ICO

1. Upload Your ODT File: Drag your .odt onto the page or click "+ Add Files" to browse. If a usable icon is the goal, start from a document whose first page is a single logo or symbol rather than body text.
2. Set Conversion Quality (DPI): This is the resolution the page is rendered at before it is scaled down — 72, 96, 150, 200, 300 (preselected), 400, 600 or 1200 DPI. Rendering high and downscaling gives cleaner edges than rendering small, so leaving it at 300 is usually right.
3. Pick an Icon Size Preset: Under Image resolution, the Preset dropdown is the only sizing control ICO exposes, and it offers 256P, 192P, 180P, 128P, 64P, 48P, 32P, 24P and 16P. Each value sets the height in pixels; the width follows the page's aspect ratio.
4. Set the Background Colour and Convert: A rasterized page has no transparent area, so the Image Transparency Colour dropdown fills the background — White is preselected, with 24 other named colours available. Click Convert to download the .ico. No sign-up, no watermark.

Walk-through: Choosing a Preset Without Breaking the Icon Directory

An ICO file starts with a directory that describes each image it contains, and in that structure the width and height of an entry are each stored as a single byte. That is the whole reason 256 pixels is the ceiling for an icon: a byte cannot count higher, and a value of zero is the convention meaning 256. The presets on this page set height only and let width follow the page shape, so a tall page stays inside the limit while a wide one may not.

Measured on a real rendered page — a portrait US Letter document and the same page rotated to landscape — at each preset:

The practical rules that fall out of that:

• Portrait document pages can safely use 256P. Both common page shapes are taller than they are wide, so a 256-pixel height keeps the width well under the limit: 198 px for US Letter, 181 px for A4.
• Landscape pages should stop at 180P. Paper shape decides where the cliff is. A US Letter landscape page still fits at 192P (248 px wide), but the wider A4 landscape ratio does not — we measured it at 272 px wide, and the directory entry came out claiming 16 × 192, because the width wrapped around past the single byte available to describe it. At 180P, A4 landscape lands at 255 × 180 and is described correctly.
• If you leave the preset alone, the page is fitted inside a 256 × 256 box with its aspect ratio preserved — the same result as picking 256P on a portrait page.
• For an actual app icon, Microsoft's long-standing guidance is to ship 16, 32 and 48 pixel entries (modern Windows shells also use a 256-pixel one). This converter writes a single image per file, so it produces one size, not a multi-size icon set.

What ICO Can and Cannot Do Here

Common Problems and How to Fix Them

• "My icon is a grey blur and I can't read anything." That is what happens when a full page of body text is squeezed into a 32- or 48-pixel square — there is no DPI setting that rescues it, because the page simply carries more detail than an icon has pixels. Start from a page that is a single bold graphic, or make the icon from proper artwork with PNG to ICO.
• "The icon looks the wrong shape or gets rejected." You almost certainly used a tall preset on a landscape page, which produces an image wider than the 256 pixels the directory can describe — on an A4 landscape page even 192P overshoots. Drop to 180P or lower.
• "I wanted a transparent background." A rendered word-processing page has no transparent region for the converter to keep, so the background is filled with the Image Transparency colour. Genuine transparency has to come from source artwork that already has an alpha channel — convert that with PNG to ICO instead.
• "My document has several pages and I got several icons." Each page is rendered separately, so a five-page ODT returns five .ico files. Move the artwork you want onto page one, or delete the other pages before converting.
• "Fonts look different from my word processor." A font used in the document is not installed on the machine doing the layout, so a substitute is used. At icon size this is almost never visible, but embedding the fonts in the ODT first removes the question.
• "The edges look jagged." Fine strokes do not survive downscaling to 32 pixels. Raise the Conversion Quality so there is more detail to average from, choose a larger preset, and simplify the artwork.

When This Doesn't Work

If what you actually want is a readable or portable version of your document, ICO is the wrong target — converting a text document into an icon throws away everything that makes it a document. For a fixed, print-ready copy that still has a searchable text layer, use ODT to PDF. To keep editing it in Word, use ODT to DOCX. For a normal page image you can email or embed, ODT to PNG is the right tool. And if the real goal is a website favicon, it should be built from a square logo rather than a page of prose: convert that artwork with PNG to ICO, or generate the complete multi-size set with the Favicon Generator. A document that needs a password to open cannot be converted at all — there is nowhere to supply one — so remove the protection in your word processor first.

Frequently Asked Questions

Why would anyone convert an ODT to ICO?

Rarely, and only for one situation: the document's first page is essentially a single logo, monogram or symbol that you want as an application icon or favicon. Designers sometimes keep brand marks inside a Writer document alongside the usage notes, and this converter turns that page directly into an .ico without a detour through an image editor. If the page is ordinary prose, the result is an unreadable square and you should convert to PDF or PNG instead.

What size should I choose for a favicon?

For a browser tab, 32 pixels does the visible work and 16 pixels is the classic fallback, so 32P or 48P are the sensible presets from this list. Microsoft's long-standing guidance for application icons is to provide 16, 32 and 48 pixel images, with modern Windows shells also using a 256-pixel entry — but this converter writes one image per file, so it cannot build that combined set. If you need a proper favicon.ico holding several sizes at once, use the Favicon Generator.

Why is 256 pixels the maximum, and what happens if I exceed it?

Because of the ICO directory structure itself: each entry stores its width and height as a single byte, so 255 is the largest number it can hold and a zero is read as 256. The presets here set height, and the converter clamps that to 256 — but the width is derived from the page's aspect ratio and is not clamped. On a US Letter landscape page at 256P we measured a 331 × 256 image whose directory entry claimed 256 × 256; on an A4 landscape page at 192P the image came out 272 px wide and the entry claimed 16 × 192, the width having wrapped around the byte. Tolerant viewers still open these files, but strict consumers can render or reject them oddly, so stay at 180P or below for wide pages.

Can I still select or search the text after converting to ICO?

No. The conversion paints the page into a fixed pixel grid, so there is no text layer left to select, copy or search — that is true of every image format, not just ICO, and it is doubly true here because the image is only a few dozen pixels across. If a searchable copy of the document is what you need, convert to ODT to PDF, which keeps the text as text.

How does the converter handle a multi-page ODT?

Every page is rendered and downscaled separately, producing one .ico per page in document order, with a "Download All (Zip)" button appearing when there is more than one. The pages are never stitched into a single multi-image icon file — an ICO can technically hold several images, but they are meant to be different sizes of the same artwork, not different pages. If you only want one icon, put the artwork on page one or delete the rest before converting.

Will the resulting ICO have a transparent background?

Not from a document source. The entry is written as 32-bit BGRA, so the alpha channel exists in the file, but a rendered word-processing page is completely opaque and the Image Transparency Colour — White by default — fills the page area. For an icon with real transparency you need source art that already carries alpha, which is why PNG to ICO is the better path for a favicon that has to sit on any background colour.

Does the Conversion Quality (DPI) setting matter if the output is tiny?

It matters more than you would expect, because it decides how much detail exists before the downscale. Rendering the page at 300 DPI and then reducing it to 48 pixels averages thousands of source pixels into each output pixel, which produces smooth, well-anti-aliased edges; rendering at 72 DPI first and then shrinking gives the filter far less to work with and tends to look harsher. Leave it at the preselected 300 unless the document is enormous and you are in a hurry.

Is the conversion private?

Yes. Your file is uploaded over an encrypted connection, converted on our servers — the document is laid out, each page is rasterized at your chosen DPI and then scaled into the icon — and deleted automatically after a few hours. There is no sign-up, no watermark, and nothing is shared or made public.