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I use the Gigapixel plugin in Lightroom Classic. I sometimes use it as an alternative to Sharpen because it produce fewer artifacts. Sometimes it works beautifully for that purpose.
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Gigapixel returns a tiff file to Lightroom like (all other plugins). No problems there.
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I then export the file as a JPEG as I always do. As always, I keep my JPEGS under 10 MBs (which I use for various purposes).
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When I try to upload it to Facebook, it gives me a message “can’t upload file”. I have tried many work arounds–saving it as a tiff reopening it in LR and then exporting it as a JPEG again. But nothing has worked thus far.
Just an aside, I routinely upload JPEGs to FB without problems including those processed in Topaz AI DeNoise.
Any assistance is welcome.
Thanks!
Dave