Convert PPM to CALS
Convert PPM images to CALS format, edit and optimize images online and free.
Drop Files Anywhere to Upload
The Portable Pixmap (PPM) file extension, an image format within the Netpbm family, stores simple, uncompressed images. Introduced in the late 1980s, PPM supports RGB color and grayscale images, making it suitable for basic image processing and conversion tasks. Its plain text encoding simplifies debugging and data manipulation, although its lack of compression results in larger file sizes compared to modern formats. As such, PPM finds limited use in contemporary applications, mainly in educational and experimental settings where ease of implementation and readability are prioritized.
The CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image file format, developed by the United States Department of Defense in the mid-1980s, is a standard for storing raster (bit-mapped) image data, typically black-and-white. It ensures efficient data interchange and retention of orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images. This standard was part of the broader CALS initiative aimed at improving electronic publishing and data management within the federal government.
Choose any PPM image from your computer, or drag & drop a PPM file onto this page.
Use any available convert tools on the preview page, and click Convert.
Once the convert is complete, you can download the final CALS file.
To change PPM format to CALS, upload your PPM file to proceed to the preview page. Use any available tools if you want to edit and manipulate your PPM file. Click on the convert button and wait for the convert to complete. Download the converted CALS file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to PPM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to PPM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to PPM file location or include path to your input file.