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Why convert ICO to PGM?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the ICO format
ICO — Windows Icon
ICO is the standard icon format for Windows, storing one or more images at different resolutions within a single file. Modern ICO files can contain high-resolution PNG-compressed images alongside traditional BMP frames for compatibility across all Windows versions.
Common uses
- Windows application and file type icons
- Website favicon (favicon.ico)
- Windows shortcut and executable icons
- Cross-resolution icon sets for Windows UI
About the PGM format
PGM — Portable Graymap
PGM is the grayscale member of the Netpbm family. It stores each pixel as a gray value (8 or 16 bits), making it ideal for grayscale image processing, scientific imaging, and intermediate conversion steps. Like PBM, it can be stored as ASCII or binary.
Common uses
- Grayscale image processing and analysis
- Scientific and medical image workflows
- Machine learning image preprocessing
- Intermediate format in Netpbm conversions
Related conversions
Other conversions available for ICO and PGM files
Frequently asked questions
How do I convert ICO to PGM?
Upload your ICO file above, choose PGM as the output format, then click Convert. Your PGM file is ready to download in seconds — nothing to install, and it works in your browser.
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.
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