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Need to reduce file size to 2ookb

Community Beginner ,
Jan 30, 2021 Jan 30, 2021

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I have a JPG file in Lightroom CC (latest version) and I want to export it reducing the file size from 4mb to 2mb. No matter what I change it comes back telling me to increase file size. How can I reduce it before I export?

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How to, Import and export

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correct answers 1 Correct answer

Adobe Community Professional , Jan 30, 2021 Jan 30, 2021
It isn't possible to reduce the size of the file before it is exported because Lightroom does not modify the master file. It would be necessary for you to reduce the size, in dimensions, sufficiently as well as reduce the quality sufficiently to constrain the file size to meet your requirements. And that would be controlled in the export settings when you create the  new copy.

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Adobe Community Professional ,
Jan 30, 2021 Jan 30, 2021

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It isn't possible to reduce the size of the file before it is exported because Lightroom does not modify the master file. It would be necessary for you to reduce the size, in dimensions, sufficiently as well as reduce the quality sufficiently to constrain the file size to meet your requirements. And that would be controlled in the export settings when you create the  new copy.

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Community Beginner ,
Jan 30, 2021 Jan 30, 2021

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Thank you, I will do that.

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Adobe Community Professional ,
Jan 30, 2021 Jan 30, 2021

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In addition to JimHess' suggestions you can help make the Export file size smaller by insuring it isn't over-sharpened or has noise. Use the Detail panel controls at 100% view and adust the image so that there is no visible noise, which will inflate the export file size.

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LEGEND ,
Jan 30, 2021 Jan 30, 2021

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Some 4GB Jpg files will and some won't reduce to less than 200kb in LrC.  It depends on the image.  If it a blue sky it will but if the image has a lot of detail it will not.  That is just the nature of Jpg compression.

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Adobe Community Professional ,
Jan 30, 2021 Jan 30, 2021

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One other thing to keep in mind is the file size. By this I mean the pixel dimentions. If you reduce an image by 50% (e.g., 4000 pixels wide down to 2000 pixels wide), you will decrease the storage size of the image by 75%

 

So be sure you find out what the actual size of the image needs to be before you go crazy trying to cut into the compression too much.

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Adobe Community Professional ,
Jan 31, 2021 Jan 31, 2021

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reducing the file size from 4mb to 2mb.

That would be 2000Kb (not 200Kb- or is this a mis-print in your subject header?)

 

Regards. My System: Lr-Classic 10.4, Photoshop 22.5, Lightroom 4.4, Windows-10 Nikon DSLR.

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