Download and install the latest version of Filestar.
Right click on one or more Phm file(s) on your desktop and select Convert with Filestar.
Type invert filter in the search box.
Press Run.
Or let an AI agent do it: filestarcli -i photo.phm -c "invert filter" (how).
Let your AI agent invert PHM filter
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Use Filestar to invert PHM filter in my Downloads folder”
Or run it yourself:
filestarcli -i photo.phm -c "invert filter"
Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.
Can my AI agent invert PHM filter?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.phm -c "invert filter" on your computer, so your files stay on it.
An FF file is an image saved in the farbfeld image format. It contains an uncompressed image that can be compressed using a variety of image compression formats.