File size shrinks after adding IPTC keywords
Posted: Mon Aug 28, 2017 12:59 am
Hello all,
I'm trying to add IPTC data to some very old photos with XNView 2.40, and I notice that the updated file is 6 to 8k smaller than the original size (100-200k files). If anything, I would have expected the file size to increase a bit as a result of the addition, but not decrease!
Is this normal? I'm worried that the operation may not be "lossless."
Thanks for any insights.
I'm trying to add IPTC data to some very old photos with XNView 2.40, and I notice that the updated file is 6 to 8k smaller than the original size (100-200k files). If anything, I would have expected the file size to increase a bit as a result of the addition, but not decrease!
Is this normal? I'm worried that the operation may not be "lossless."
Thanks for any insights.