Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your PCX images to ICO format. This tool works for both professionals and casual users. Convert your images to ICO in seconds.
Picture Exchange
The de facto standard for DOS paint programs.
PCX (Picture Exchange) was one of the first widely accepted standards for DOS imaging. Created by ZSoft for their PC Paintbrush software, it became the native format for Windows 3.0 Paintbrush and supported the evolution of PC graphics hardware from monochrome CGA to 256-color VGA and eventually 24-bit TrueColor.
PCX uses a header containing the version, dimensions, and palette information, followed by image data compressed using a simple Run-Length Encoding (RLE) scheme. This scheme was very efficient for the simple graphics of the 80s (large areas of flat color) but is poor for complex photographs. 256-color palettes are often appended at the end of the file.
Established in 1985. It enjoyed a decade of dominance before being displaced by BMP (on Windows), GIF (on the web), and JPEG (for photos). It is now largely obsolete but still recognized by many tools due to its historical significance.
Microsoft Icon
The standard format for icons on Microsoft Windows and the web (favicons).
The ICO format is a container for one or more images at multiple sizes and color depths. It allows a single file to store appropriate icons for different display contexts (e.g., 16x16 for menus, 256x256 for desktop). It supports transparency and, in modern versions, PNG compression.
ICO files contain a header followed by an icon directory that lists each image entry. Each entry can use either BMP (uncompressed) or PNG compression. The format supports 1, 4, 8, 16, 24, and 32-bit color depths with optional alpha channels.
Introduced with Microsoft Windows 1.0. It became the standard for website favicons with the release of Internet Explorer 5.
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