欢迎使用智能文件转换平台

上传文件开始转换，支持本地文件上传或远程链接导入

${shortenFileName(item.file_name)} ${formatBytes(item.file_size)}

输出格式：

已上传 ${items.length} 个文件

Convert

如何将Ppm文件转换为ICO？

点击「选择PPM文件」按钮上传您的源文件
点击「立即转换」启动智能转码流程
状态显示「转换完成」后，点击「下载ICO」获取文件

全场景PPM to ICO格式兼容转换

本工具支持将多种类型的 Ppm 转换为 ICO。可将 PNG, JPEG, TIFF, GIF, BMP, ICO, WEBP, SVG, PDF, EPS 转换为 ICO。

行业领先的Ppm格式转换专家

智能优化算法保障Ppm转换质量，支持批量处理与自定义分辨率/码率/帧率设置

零成本·军工级安全

基于浏览器即点即用，采用金融级256位SSL加密传输，所有文件72分钟后自动焚毁

What is a PPM file?

PPM (Portable Pixmap) is an image format developed by Netpbm, widely used for storing high-quality color images. It is a simple text or binary format supporting the RGB color model, suitable for image processing and computer graphics. Compared to more complex formats like JPEG or PNG, PPM offers higher transparency and readability, making it ideal for programming and debugging. Additionally, PPM files are typically uncompressed, ensuring lossless image quality.

PPM is part of the Netpbm format family, which includes PBM (black and white images), PGM (grayscale images), and PPM (color images). These formats are simple and easy to parse, making them perfect for developing and testing image processing algorithms. Recommended tools include GIMP and ImageMagick.

开发团队： Netpbm
首发时间： 1988
相关链接：

https://en.wikipedia.org/wiki/Netpbm_format

https://www.gimp.org/

https://imagemagick.org/script/formats.php

What is an ICO file?

ICO is a specialized file format used by Windows to store icons for applications, folders, and websites. An ICO file can contain multiple images of different sizes and color depths, such as 16×16, 32×32, and 48×48, to ensure proper display across different interfaces. It supports transparency and can use lossless or lossy compression for optimization. In addition to Windows, ICO files are commonly used as favicons for websites. Recommended editors include IcoFX and GIMP, while ImageMagick can be used for format conversion.

How to open and edit an ICO file?

ICO files can be opened and edited using various tools on Windows and macOS. Here are some recommended tools: - Viewers and Editors: - IcoFX: A dedicated ICO editor with batch processing and high-quality icon creation features. - GIMP: An open-source image editor that supports ICO files for modification and export. - Adobe Photoshop: Can open and edit ICO files with the appropriate plugin installed. - Windows File Explorer: Double-clicking an ICO file allows previewing it directly in Windows. - Conversion Tools: - ImageMagick: A command-line tool that converts PNG, JPEG, and other formats to ICO or extracts icons from ICO files. - Online conversion tools: Services like CloudConvert and ConvertICO allow converting ICO files to PNG, SVG, and other formats. When creating an ICO file, it's recommended to use a 256×256 PNG image for conversion to ensure high-quality display on modern high-resolution screens.