JPEG size after BQM

[frederic chaume]

ok, but here the differene is huge :  70% smaller (12Mb vs 4Mb).
I checked the "saving images" parameters from the BQM : "JPG Quality" is 
set to 100% and "chroma.. " set to 4.4.4 (best quality)

is there other settings that could explain this difference ?
frederic



Le 12/05/2024 à 08:57, Remco Viëtor a écrit :
> On dimanche 12 mai 2024 08:46:24 CEST frederic chaume wrote:
>> Hi
>>
>> I created a workflow in BQM just to add a watermark (using a png
>> filewith and opacity of 75%) .
>> Then I add a JPEG and I got the expected result but I realized that the
>> size of the orginal JPEG was ~12Mb and the generated file is only ~4Mb .
>> I checked that the resolution remains the same , so I'm wondering is
>> there should be some comperssion during the BQM execution. Did I miss
>> something?
>> For information, I did  the same in another software (DXO) and the
>> generated file has the same size than the original one
>>
>> thanks for your feedback
>>
>> Frederic
> Adding a watermark to a .jpg means re-encoding the data, so yes, file size can
> change depending on quality settings.
>
>
>