POTM to ICO Converter

Turn POTM template slides into ICO icons online

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Design to Icon

Transform polished POTM slide visuals directly into crisp ICO icons — perfect for branding desktop shortcuts or web favicons.

Cloud Conversion

All processing runs on Convertio servers. Your device stays idle while slides are rendered into properly formatted icon files.

Multi-Slide Export

Every slide in your POTM template generates its own ICO file — produce an entire icon set from a single upload.

How to convert POTM to ICO

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose ico or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your ico file right afterwards

About formats

POTM (PowerPoint Template with Macros) is a macro-enabled template format for Microsoft PowerPoint, introduced with Office 2007 as part of the Office Open XML family. POTM combines the template functionality of POTX — providing reusable slide masters, layouts, themes, and design foundations — with the ability to embed VBA (Visual Basic for Applications) macro code that executes in presentations created from the template. The format is a ZIP archive containing the standard XML parts for slide masters, layouts, and themes, plus a vbaProject.bin stream housing the VBA project. This combination enables organizations to distribute not just visual consistency but also functional automation: every presentation created from a POTM template inherits both the design system and the programmatic capabilities built into it. Common use cases include templates that automatically populate slides with data from corporate systems, enforce content approval workflows, insert standardized disclaimer slides, or provide custom ribbon tabs with organization-specific tools. One advantage is embedded workflow automation — a POTM template can include initialization macros that configure the presentation environment, add custom menu options, and connect to external data sources the moment a new presentation is created from it. The distinct .potm extension serves a security purpose as well, enabling administrators to apply differentiated trust policies for macro-containing templates versus standard POTX files. POTM is supported exclusively in Microsoft PowerPoint desktop editions where VBA execution is available.
Developer: Microsoft
Initial release: January 30, 2007
ICO is the icon file format for Microsoft Windows, introduced with Windows 1.0 in 1985 and serving as the standard container for application icons, file type icons, and shortcut icons throughout the Windows ecosystem. An ICO file bundles multiple image variants within a single container — each at different sizes (16x16, 32x32, 48x48, 256x256, and others) and color depths (4-bit, 8-bit, 24-bit, 32-bit with alpha) — allowing Windows to select the most appropriate image for each display context, from tiny taskbar buttons to large desktop icons. The container structure consists of an ICONDIR header, an array of ICONDIRENTRY records describing each variant, and the image data itself. Since Windows Vista, ICO files support embedded PNG-compressed images for the larger sizes (typically 256x256), dramatically reducing file size while maintaining quality with full alpha transparency. One advantage is automatic size adaptation — Windows pulls the optimal resolution from the ICO container for each context (Explorer list view, desktop tile, Alt-Tab preview), ensuring crisp display without the application managing separate image files. The format's operating system-level integration is another core strength: ICO files serve as the identity mechanism for executables, file associations, and shortcuts across all Windows versions, and web browsers use favicon.ico for website identity in tabs and bookmarks. ICO creation and editing is supported by image editors like GIMP, Inkscape, and dedicated icon tools, and the format remains essential for Windows application development.
Developer: Microsoft
Initial release: 1985

Frequently Asked Questions

Why convert POTM to ICO?

Turning slide designs into ICO icons lets you repurpose branded template graphics as desktop icons, favicons, or application icons on Windows.

What programs open ICO files?

Windows Explorer displays ICO natively. For editing, use GIMP, Greenfish Icon Editor, IcoFX, or Adobe Photoshop with an ICO plugin.

What icon sizes does the output support?

ICO files can embed multiple resolutions in one container — common sizes include 16x16, 32x32, 48x48, and 256x256 pixels.

Will the conversion strip macros from POTM?

Yes — ICO is purely pixel data. All VBA macros and template logic from the POTM file are completely discarded.

Can I use the resulting ICO as a favicon?

Absolutely. The ICO format is the standard for browser favicons — just rename the file to favicon.ico and place it on your web server.

Is this converter free to use?

Convertio offers free POTM to ICO conversions. Upgrading to a premium plan lifts file size limits and batch quotas.