Convert PNG to ERF Online — Free
Fast, free PNG to ERF converter. No registration required.
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How to Convert
Upload your .png file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .erf file when it's ready.
What is PNG?
PNG is a lossless image format that supports transparency. It's ideal for graphics, logos, and images requiring sharp edges or transparent backgrounds.
Format Details
- Full Name
- Portable Network Graphics
- Extension
- .png
Key Features
- Lossless quality
- Transparency support
- Sharp edges
- Web optimized
What is ERF?
ERF is Epson's proprietary RAW image format used by the Epson R-D1, the world's first digital rangefinder camera. It stores unprocessed sensor data from the 6.1 MP APS-C CCD sensor.
Format Details
- Full Name
- Epson Raw Format
- Extension
- .erf
Key Features
- Epson R-D1
- RAW quality
- Full sensor data
- Digital rangefinder
PNG vs ERF
| Feature | PNG | ERF |
|---|---|---|
| Full Name | Portable Network Graphics | Epson Raw Format |
| Extension | .png | .erf |
| Best For | Lossless quality | Epson R-D1 |