JFIF Is Just JPEG Explained

JFIF Is Just JPEG Explained | Generated by AI

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JFIF stands for JPEG File Interchange Format.

What JFIF Is

It’s not a different image format from JPEG, but rather a standardized way of embedding metadata and structure inside a JPEG file.
Files with .jfif extensions are still JPEG images — they just explicitly declare the JFIF specification in their headers.
Many tools (especially older ones like Windows Paint or some cameras/scanners) used .jfif as the default extension instead of .jpg or .jpeg.

So, when you see a .jfif file, you can treat it exactly the same as a .jpg image.

How to Convert JFIF to Standard Image Formats

Rename the Extension
- In most cases, simply rename image.jfif → image.jpg.
- Since the underlying format is JPEG, most programs will open it without issue.
Using Image Editors
- Open the .jfif in Photoshop, GIMP, Paint, or Preview (macOS).
- Save/Export as .jpg or .png.

Using Python (Pillow)

from PIL import Image

img = Image.open("image.jfif")
img.save("image.jpg")   # save as JPEG
img.save("image.png")   # or convert to PNG

Using Command Line (ImageMagick)
```
magick image.jfif image.jpg
```
Or with FFmpeg (since it can decode images too):
```
ffmpeg -i image.jfif image.jpg
```

✅ In summary: JFIF is just a JPEG, so you can open it like any .jpg. If compatibility is an issue, just rename it or convert with Pillow/ImageMagick.

Do you want me to give you a quick Python script that can batch-convert all .jfif files in a folder to .jpg?

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