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Why are converted files smaller than original when Output 'Format' is set to 'Original'?

Posted: Mon Aug 10, 2020 9:04 am
by tjs
I'm using XnConvert to add a date stamp to the bottom corner of my photos. When converting a jpeg photo taken on my smartphone, the output is about 1/2 the size of the original even though "Output Format" is set to "Same as Original".

For example, i started with a jpg file that is 3.64MB, 4032x2872px /24bit. I then added the time stamp with a Text Action. The resulting file is only 1MB with the same properties!? What is being removed/ compressed?

If anyone knows, please explain. Thank you.

Re: Why are converted files smaller than original when Output Format is set to Original?

Posted: Mon Aug 10, 2020 9:14 am
by cday
'Same as original' sets the output file format, but the compression used when saving is determined by the values set in the 'Settings...' button below... :D