How do I convert a PUB file to ICO using LetsConvert?

Upload your PUB file, select ICO as the output format, choose an icon size (16, 32, 48, 64, 128, or 256 pixels), and click Convert. The tool processes the page in your browser, and you download the resulting ICO file instantly.

Why convert PUB to ICO instead of using another format?

PUB is a desktop publishing format for print and document layouts, while ICO is the standard icon container for Windows. Converting your Publisher design to ICO lets you reuse it as an app icon, shortcut emblem, or favicon. ICO also supports transparency and multiple embedded resolutions, making it ideal for scalable UI elements.

What happens to fonts, layers, and transparency when converting PUB to ICO?

The converter rasterizes the entire PUB page at the selected pixel size. Vector shapes are flattened, and text becomes non-editable pixels at the specified DPI. Transparency is preserved via an alpha channel, so any empty areas or translucent objects remain see-through. Only the content within the page bounds is captured; if your PUB has multiple pages, only the first page is converted by default—rearrange or separate the desired page before uploading.

PUB-TO-ICO

Turn PUB pages into crisp ICO icons at 16-256px. Preserve vector shapes and alpha transparency for Windows apps. Instant online conversion.

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🖼️PUBsource

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✨ICOtarget

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Choose PUB files or drag & drop

Batch upload supported · Max 50MB per file

Browse Files

Or import from:

Conversion Settings

Output Quality90%

Optional Dimensions

Max Width (px)

Max Height (px)

🛡️ Zero Data Storage Guarantee

Images are converted directly in isolated memory sessions and destroyed immediately upon download.

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PUB

PUB File Format

Source Format

PUB is a standardized digital file format supported by LetsConvert. Convert PUB files securely, privately, and instantly online with zero software installation, bank-grade encryption, and automatic 60-minute file purging.

Category: Data & Media File

MIME Type: application/pub

Developer: Standard Organization

Best For: Converting and managing PUB files across devices and applications.

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ICO

Windows Icon Format

Target Output

ICO is an image file format specifically designed to store multi-resolution icon graphics for Microsoft Windows operating systems and website favicons.

Category: Icon Graphics

MIME Type: image/x-icon

Developer: Microsoft

Best For: Website favicons, desktop shortcut icons, and application branding.

💡 Technical Guide & Conversion Insights

Why Convert PUB to ICO?

Converting from PUB (PUB File Format) to ICO (Windows Icon Format) is essential when you need enhanced compatibility, reduced file size, or specific feature support. While PUB is ideal for Converting and managing PUB files across devices and applications., ICO offers superior advantages for Website favicons, desktop shortcut icons, and application branding.. Our secure online conversion engine ensures that all your PUB file attributes, geometry, quality, and metadata are seamlessly preserved during the transformation into ICO.

● PUB Key Advantages:

✓Standard format compatibility
✓Fast online conversion processing
✓Zero software install required

● ICO Key Advantages:

★Contains multiple icon resolutions (16x16, 32x32, 48x48, 256x256) inside a single file
★Universal website favicon standard

PUB vs ICO Comparison Table

Detailed technical differences and capabilities between PUB File Format and Windows Icon Format.

Feature / Attribute	PUB	ICO
Primary Format Name	PUB File Format	Windows Icon Format
Primary File Category	Data & Media File	Icon Graphics
Standard MIME Type	application/pub	image/x-icon
Core Developer / Standard	Standard Organization	Microsoft
Optimal Use Case	Converting and managing PUB files across devices and applications.	Website favicons, desktop shortcut icons, and application branding.

❓ Common Questions

Frequently Asked Questions (PUB to ICO)

Everything you need to know about converting PUB to ICO with LetsConvert.

To convert your PUB file to ICO, upload your file by dragging and dropping it into the upload box or selecting it from your device. Adjust any optional quality or dimension settings, then click 'Convert'. Your converted ICO file will be ready for instant high-speed download within seconds.

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100% Secure & Automatic File Purging

Your PUB files are encrypted with 256-bit SSL and permanently deleted from our servers within 60 minutes.

● Zero File Storage

How to Convert PUB-TO-ICO

Select or drop your Pub file.

Initiate the ICO conversion process.

Download your converted ICO file.

⚡ Related Conversions

PUB-TO-ICO

Conversion Settings

🛡️ Zero Data Storage Guarantee

PUB

ICO

Why Convert PUB to ICO?

● PUB Key Advantages:

● ICO Key Advantages:

PUB vs ICO Comparison Table

Frequently Asked Questions (PUB to ICO)

100% Secure & Automatic File Purging

How to Convert PUB-TO-ICO

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