Download and install the latest version of Filestar.
Right click on one or more Erf file(s) on your desktop and select Convert with Filestar.
Type convert to j2k in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.erf -c "convert to j2k" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.erfContract.erf
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert ERF to J2K
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 ERF files in my Downloads folder to J2K”
Or run it yourself:
filestarcli -i file.erf -c "convert to j2k"
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 ERF to J2K?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.erf -c "convert to j2k" on your computer, so your files stay on it.
This format was created to store images in RAW format that were created using Epson digital cameras. The image is stored in an uncompressed form, and it can be directly printed on Epson printers. This format can be edited using the Epson PhotoRAW software or using plug-ins in other image editors.
Compressed bitmap image that uses wavelet compression instead of the DCT compression used by standard .JPEG images; supports 16-bit color, alpha transparency, and lossless compression.
