JPG "Save as" vs "Export" - 6x size difference

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Hacker
Posts: 237
Joined: Tue May 17, 2005 9:24 pm
Location: Bratislava, Slovakia

JPG "Save as" vs "Export" - 6x size difference

Post by Hacker »

Hi,
XnView MP 1.0 64-bit, Windows 10.

I was trying to reduce the size of the attached image Original.jpg. I wanted to resize it to 50% x 50% and save it as JPG with a Quality setting of 80.

So, first I resized the image using these settings:
Resize.png

Then I used Save as... using the following settings for JPG:
WriteSettings.png
The resulting file "Test-SaveAs.jpg" was 1,151,532 bytes large, so even larger than the original.

Then I tried again, resizing the original image and this time using Export... using the following settings:
Export.png
The resulting file "Test-Export.jpg" is only 183,614 bytes large, so 6 times smaller than the "Test-SaveAs.jpg" which I expected to be about the same size.

Why is there such a size difference, please? Am I making a mistake in my expectations?

TIA
Roman
Attached are the original image and the results of the Save as and the Export commands after resizing.)
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Koogle
Posts: 120
Joined: Wed Sep 20, 2006 3:23 pm

Re: JPG Save as vs Export - 6x size difference

Post by Koogle »

I barely read the post.. but I did see Keep ICC Profile ticked... ICC profiles can be much larger than the image itself.. so untick that and see if that makes the difference then you'll know what was causing it.
Hacker
Posts: 237
Joined: Tue May 17, 2005 9:24 pm
Location: Bratislava, Slovakia

Re: JPG Save as vs Export - 6x size difference

Post by Hacker »

Koogle,
Indeed, you were right, thank you!

Roman