Convert SFW to CALS
Convert SFW images to CALS 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 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 SFW image from your computer, or drag & drop a SFW file onto this page.
Use any available SFW to CALS tools on the preview page and click Convert.
You will be redirected to the download page to see the conversion status and download your CALS file.
To change SFW format to CALS, 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 CALS 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.