You can use the mogrify command and get all the conversions done to JPEG and then do all the exiftool re-embedding of the EXIF data later. If you are on Windows, you will have to do some ad-hoc jiggery-pokery to get it done in any reasonable time frame. Sample Output convert a.nef a.jpg exiftool -tagsfromfile a.nef -all:all a.jpgĬonvert b.nef b.jpg exiftool -tagsfromfile b.nef -all:all b.jpgĪnd if that looks good remove the -dry-run so it actually runs the command. If you have thousands of images, and are on macOS or a decent Linux/Unix-based OS, I would recommend GNU Parallel like this and it will keep busy all those lovely cores that you paid Intel so dearly for: parallel -dry-run 'convert. Then you can copy the tags across from the original to the file newly created by ImageMagick: exiftool -tagsfromfile somefile.NEF -all:all somefile.jpg Think twice before doing this - you really are discarding a lot of information - and if you don't want it, why not shoot JPEG instead of RAW in the first place?įWIW, you can use ImageMagick to get the JPEG: convert somefile.NEF somefile.jpg The code exiftool -tagsfromfile %d%f.NEF -ext jpg -overwrite_original.But when I specify -quality 100 in ImageMagick the image sizes gain about 45 MB! Why? The images I converted using mogrify are slightly smaller (~ 1-2 MB) than those output by my colleague using picasa to convert NEF to JPG.Thanks in advance for any advice you have about how to do this. I've searched around quite a bit to try and find a solution to this and it seems like I may have to install ufraw, but if possible I'd like a solution that uses software I already have - ImageMagick and Exiftool.

NEF files are successfully converted to JPGs, but all EXIF data are lost. I'm using the mogrify command because it handles batches nicely.Īll of my. I've just gotten started using ImageMagick from the command line.

I'd like the JPGs to be at the highest possible quality.

I'd like to retain all EXIF data, most importantly Date and time created, Latidude and Longitude.

Mac nef to jpg