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Image Conversion

Convert JPG to ERF Online — Free

Fast, free JPG to ERF converter. No registration required.

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Works Everywhere

Any browser, any device

How to Convert

1

Upload your .jpg file by dragging it into the upload area or clicking to browse.

2

Choose your output settings. The default settings work great for most files.

3

Click Convert and download your .erf file when it's ready.

What is JPG?

JPG (JPEG) is the most common image format for photographs. It uses lossy compression to achieve small file sizes while maintaining good visual quality.

Format Details

Full Name
JPEG Image
Extension
.jpg

Key Features

  • Universal support
  • Small file sizes
  • Great for photos
  • Adjustable quality

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

JPG vs ERF

FeatureJPGERF
Full NameJPEG ImageEpson Raw Format
Extension.jpg.erf
Best ForUniversal supportEpson R-D1

Frequently Asked Questions

Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.

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