exiftool DPI disagrees with image properties on Windows 10 and the file linux command

I'm trying to use the exiftool to set the DPI on a set of images to 300

I'm using the following command:

./exiftool -jfif:Xresolution=300 -jfif:Yresolution=300 filename.jpg

I've also tried:

./exiftool -Xresolution=300 -Yresolution=300 filename.jpg

When I query the dpi using exiftool I get the correct value:

Instead, when I query the file properties on Windows (right click, properties) or using the file linux command I get different values:

JPEG image data, JFIF standard 1.01, aspect ratio, density 300x300, segment length 16, Exif Standard: [TIFF image data, big-endian, direntries=4, xresolution=62, yresolution=70, resolutionunit=1], baseline, precision 8, 1440x1152, frames 3

Windows shows DPI as 96x96

Are there any additional attributes needed to set?

Vasilis

Posted 2019-07-10T16:37:00.083

Reputation: 171

1You could just ignore it altogether, as DPI means absolutely nothing until you print the picture, or set it in a page-layout app. btw density 300x300 is 300 dpi. – Tetsujin – 2019-07-10T16:45:10.750

Try running exiftool -G1 -a -s -*Resolution to see all the resolution tags that are in the file and what groups they are a part of. That said, when I run your first command on a file that doesn't have any resolution to start with, Windows shows the resolution as 300. – StarGeek – 2019-07-10T17:32:56.267

exiftool DPI disagrees with image properties on Windows 10 and the file linux command

No answers