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 pnm in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.erf -c "convert to pnm" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
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.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 PNM
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 PNM”
Or run it yourself:
filestarcli -i file.erf -c "convert to pnm"
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 PNM?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.erf -c "convert to pnm" 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.
The PNM (Portable Any Map Image) file format is a subset of the broader Netpbm format, designed for storing various types of digital images. It acts as an umbrella term for three specific types of grayscale, color, and black-and-white images, represented by PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap) formats respectively. PNM files are known for their simplicity and ease of conversion to other image formats.
