Convert SFW to CAL
Convert SFW images to CAL format, edit and optimize images online and free.
Drop Files Anywhere to Upload
The SFW file extension, created by Seattle FilmWorks, was used to store digital copies of photos processed by the company, allowing customers to receive both physical prints and digital images. Although not widely supported by modern software, SFW files can still be opened and converted using tools and older versions of image viewers. This format marks a significant step in the evolution of digital photography.
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.
Choose your SFW image for uploading to our SFW converter.
Check the file preview quickly and use SFW to CAL tools if you need to change the conversion settings.
Once the convert is complete, you can download the final CAL file.
To change SFW format to CAL, upload your SFW file to proceed to the preview page. Use any available tools if you want to edit and manipulate your SFW 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 SFW file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to SFW file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to SFW file location or include path to your input file.