Download and install the latest version of Filestar.
Right click on one or more Jfi file(s) on your desktop and select Convert with Filestar.
Type convert to pgm in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.jfi -c "convert to pgm" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
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.jfiContract.jfi
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert JFI to PGM
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:
“Convert the JFI files in my Downloads folder to PGM”
Or run it yourself:
filestarcli -i photo.jfi -c "convert to pgm"
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 convert JFI to PGM?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.jfi -c "convert to pgm" on your computer, so your files stay on it.
Developed by y JPEG (Joint Photographic Experts Group), JFI files are used to transfer jpeg encoded data between computer platforms and programs. It contains a compressed bitmap image that will full palette.
A PGM file is a grayscale image file saved in the portable gray map (PGM) format and encoded with one or two bytes (8 or 16 bits) per pixel. It contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536). PGM files are typically stored in ASCII text format, but also have a binary representation.
