Publisher to ICO Converter

Publisher to ICO Converter

A .pub file is a Microsoft Publisher document — a multi-page desktop-publishing layout of text, images, and graphics, not a single picture. ICO is the Windows icon container, and each image inside it is at most 256×256 pixels. This converter renders a page of your Publisher document to a raster image and then downscales it into an icon, so it is genuinely a document-to-icon conversion. Read the "What you'll actually get" note below before you run it: a full page layout shrunk to 256 pixels will not be readable.

What You'll Actually Get

This tool is the right choice only when your Publisher file is essentially a logo, badge, or single graphic that you want as a Windows icon or favicon. If your .pub is a flyer, newsletter, brochure, or any multi-paragraph layout, shrinking it to a 256×256 icon makes the text illegible — icons are sized for taskbars and browser tabs, not for reading.

For a document you actually need to read or keep, convert it to a viewable format instead:

• Publisher to PDF — keeps the whole document readable, multi-page, and exactly as laid out. This is what Microsoft itself recommends for archiving .pub files.
• Publisher to PNG — a full-resolution page image with transparency support, good if you want to crop a graphic out afterward.
• Publisher to JPG — a smaller full-page image for sharing or previewing.

.pub (Microsoft Publisher) Format at a Glance

ICO (Windows Icon) Format at a Glance

How to Convert Publisher to ICO

1. Upload Your Publisher File: Drag and drop your .pub file onto the page or click "+ Add Files" to select it from your computer.
2. Set Image Resolution: Open Advanced Options and use the "Image resolution" dropdown — the default is 256P (256×256), the largest size an ICO image supports. Choose a smaller preset like 32P or 48P if you only need a small favicon.
3. Confirm the Output: Keep the default settings unless you have a specific need; they are tuned to render the page cleanly before downscaling to icon size.
4. Convert and Download: Click "Convert" and download your .ico file. No sign-up, no watermark. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours.

Frequently Asked Questions

Why does my Publisher document look unreadable as an ICO?

Because an ICO image caps at 256×256 pixels. A Publisher page is laid out for print — often the equivalent of thousands of pixels wide — so shrinking it to icon size collapses all that detail. The text becomes a blur of pixels. ICO is meant for logos and symbols, not for reading a document. If you need the content legible, convert to PDF instead.

Which page of my Publisher document becomes the icon?

The tool renders the document to an image and fits it into the icon canvas. For single-page or logo-style .pub files this is exactly what you want. For multi-page layouts, an icon can only represent one page-sized image, so this conversion is not a good way to preserve a multi-page document — use Publisher to PDF for that.

What icon sizes can the ICO file hold?

A Windows ICO can store multiple images in one file at standard sizes of 16×16, 32×32, 48×48, and 256×256 pixels, and Windows picks the right one for each context. Our default output is 256P (256×256), the maximum per-image size; you can pick a smaller preset under "Image resolution" if you specifically want a small favicon.

Is Microsoft Publisher really being discontinued?

Yes. Microsoft has announced that Publisher will no longer be supported after October 1, 2026, and Microsoft 365 subscribers will not be able to open or edit .pub files in Publisher after that date. Microsoft recommends exporting your Publisher files to PDF or Word before then, which is one reason converting .pub to a durable format now is worthwhile.

Should I use this tool, or convert to an image format first?

If your .pub is already a logo or single graphic destined to be a Windows icon or favicon, this direct conversion is fine. If it is a real document, convert to PNG or JPG for a viewable full-resolution page, or to PDF to keep every page readable. You can always turn a clean PNG of a logo into an icon afterward.

Are my Publisher files kept private?

Yes. Your .pub file is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and your files are never shared or made public.

Do I need Microsoft Publisher installed to convert a .pub file?

No. The conversion runs entirely on our servers, so you do not need Microsoft Publisher, Office, or any plug-in on your computer — just upload the .pub file and download the .ico. This is especially handy given that Publisher is being retired after October 1, 2026, since you can still pull images out of old .pub files without a working copy of the app.

Can I convert several Publisher files to ICO at once?

Yes. Add multiple .pub files with "+ Add Files" and they are converted with the same Image resolution setting, then returned individually or as a ZIP for a larger batch. Each document produces its own .ico; the tool does not combine several documents into one multi-page icon.