How to fix my photos?

I accidentally uploaded picture onto my laptop from my nikon as. NEF files instead of. JPG files… I changed one back to a. JPG but it is really small. Is there any way to change them back to.jpg without all of them shrinking?

Actually you can't accidentally copy image files as NEF to your computer

What has happened is that you shoot with your camera saving your images as RAW (NEF) files.

You need to process the RAW files and export them as JPEG files to another file folder named for the subject and date so you can find them again.

RAW files have All the data your sensor sees and records it without any in-camera changes or compression.

The reason a RAW file is always larger than a JPEG is because the JPEG is a compressed file, hence the smaller file

A.NEF is a raw image file.

All you need to do is process it to turn it into a jpeg.

Didn't your camera come with raw conversion software? Most do. Check the disks you got when you bought the camera.

jpegs will always be much smaller in file size than a raw image file. Because jpegs are a compressed lossy image format.

If you want to save the image in a lossless uncompressed format - then process it and save as a tiff.

Use the software that came with the camera to convert to jpegs…

jpegs are compressed image files… So they will be smaller than NEF, in data size not in image size…