Convert PNM to CAL
Convert PNM images to CAL format, edit and optimize images online and free.
Drop Files Anywhere to Upload
The PNM (Portable Anymap) file extension, developed by Jef Poskanzer in the 1980s, stands for Portable Any Map. It is an uncompressed raster graphics format designed for portable image storage and exchange, encompassing three sub-formats: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PNM files store image data in plain text or binary format, ensuring easy usage across different platforms and applications. This format is widely supported by various image editing software and is valued for its simplicity and lossless compression.
The CAL file extension, known as CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image, is a 1-bit black-and-white raster image format developed by the U.S. Department of Defense in the mid-1980s to standardize graphics data interchange for military documentation. It is primarily used for storing and sharing monochrome images while retaining orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images.
Select a PNM image from your computer, or drag & drop it on the page.
Use the tools available for converting PNM to CAL and click the Convert button.
When the conversion status changes to successful, click on the Download button to get the final CAL image.
To change PNM format to CAL, upload your PNM file to proceed to the preview page. Use any available tools if you want to edit and manipulate your PNM file. Click on the convert button and wait for the convert to complete. Download the converted CAL file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to PNM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to PNM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to PNM file location or include path to your input file.