The ability to export lossy DNGs compressed with JPEG-XL would give me one less reason to hang onto my Adobe subscription and invest the savings into purchasing Nik Collection 7, which would give me HDR, removing yet another reason to hang onto Lightroom Classic. It’s a virtuous cycle.
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Adobe DNG converter is free to usE … and it works from command line ( https://helpx.adobe.com/content/dam/help/en/photoshop/pdf/dng_commandline.pdf ) - so you can export from DxO PL to a custom made script that will do it for you ( lossless DNG → lossy DNG )
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Indeed. If I have anything to do with format conversion or DNGs, my first stop is the free DNG converters from Adobe.
There is also the free and open source JPEG-XL reference converter.
I was surprised to recently read that macOS already supports JPEG-XL in some places (notably Preview and Finder). So I installed the reference tool and very simply converted a JPEG to JPEG-XL.
I can confirm, by the way, that the JPEG-XL file was visually identical and also smaller in file size.
This is consistent with other indications that Apple has begun its move away from JPEG and HEIF. For example, the iPhone 16 Pro / Pro Max introduces ProRaw DNG (JPEG-XL) output in both lossy and lossless formats.
This recent article provides some background:
Why Apple Uses JPEG XL in the iPhone 16 and What it Means for Your Photos | PetaPixel-
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Thanks, folks. Very informative and helpful. Being allergic to coding, I’ll stick with DNG Convertor.
I’m trying to save a step in my workflow. If I can export lossy DNGs straight from PhotoLab, I don’t have to export giant DNG files and then convert them later with another app.
as noted using some custom script it is seamless - you simply export to this “app” straight from PhotoLab and that’s it … but of course you need to write it ( this script will call Adobe DNG converter to do the deed with needed parameters )
Good to know, but I’m a photographer, not a scripter.
time to become one - a lot of things can be done for photolab that way
I’d rather spend my time on, you know, photography, and ask DxO to provide this feature.
BTW, DNG Converter does not let me resize to 6000px on the long edge, which is what I want. Best it offers is 2560px or 20MP. So, a script that calls DNG Converter is not going to do the job. So far, the only way I’ve found to accomplish this is to export lossy DNGs from Lightroom Classic, where the option to specify pixel dimensions is available. Even LRC’s “Convert to DNG” command doesn’t allow this, although it does offer the option to replace the lossless DNG with the lossy one, which neither exporting nor DNG Converter can do.
So, exporting lossy DNGs of user-specified pixel dimensions from PhotoLab would be a real workflow simplifier and time saver.
I might be missing the point ?
I downloaded this raw file https://www.dpreview.com/sample-galleries/4314410403/fujifilm-gfx-100-ii-pre-production-sample-gallery/4810377354
and executed this command
“C:\Program Files\Adobe\Adobe DNG Converter\Adobe DNG Converter.exe” -dng1.7 -lossy -side 6000 DSCF0021.RAF
and received DNG with 6000x4500 size …
Did I miss something on your side ? Please advise … how do you want to resize w/o it be lossy in principle ?
First, let me clarify. My goal is to export from PhotoLab lossy compressed DNGs resized to 4000px X 6000px and generated by the JPEG XL engine and have those automatically imported into Lightroom Classic via the plugin.
I’m on macOS, and I don’t work with Terminal commands. DNG Converter’s UI offers no option to resize to anything more than “20MP”. And, in any case, it won’t replace lossless DNGs with lossy ones - as Lightroom Classic’s Convert to DNG command does - which means that I have to manually import the down-rezzed lossy DNGs into Lightroom Classic and then delete the lossless DNGs - a tedious process when batch replacing thousands of images in dozens of folders.
You have " thousands of images in dozens of folders" - you have no issues to import files into LR generated by DxO PL but you have issues to import same amount of files into LR generated by DNG converter ? just learn to use command line / write scripts to replace your DNGs with lossy ones if that rocks your boat to save some space (?) … now of course if you want some extra benefits from DxO PL like optics correction, etc baked into those converted DNGs before resizing/compression then you have to use DxO PL as well
That “just” is doing a lot of heavy lifting.
If you’re not comfortable on the command line, you can certainly learn, but there’s a steep learning curve from “nothing” to “a script that does exactly what I want.”
I am quite comfortable on the command line and even using ChatGPT to help me build scripts, it’s still quite an undertaking! I say this just having finished a “simple” script to efficiently archive changed files to a NAS. There are always edge cases that will catch you out!
One option to consider, while avoiding the command line, is to use an app that is basically a GUI built on top of the very tools discussed. Check out Retrobatch.
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I am trying to simplify my workflow. I’d rather leave the coding to DxO’s coders, so I can focus on what I’m good at, which is photography. I’m trying to save time, and learning to write scripts would be #473 on my to-do list after painting my home’s rear bulkhead, patching the edges of my roof, designing new business cards, migrating my websites to a new platform, reconciling my credit card transactions, renewing my family’s health insurance, finding a better position for the subwoofer in my office, getting a birthday present for my sister, and clipping my toenails. So, no, I’m not “just” going to learn to write scripts.
If PhotoLab would let me export resized lossy DNGs into LRC, the only remaining step for me would then be to delete the original RAW. Much easier.
I hope I’ve made myself clear here and you will stop trying to talk me out of making this request to DxO’s developers. You haven’t actually provided any useful suggestions or information.
I wouldn’t hold your breath. DxO’s approach to DNG seems to be as an input format, and even that as an accepted alternate (in just the right flavours) to RAW. I think the fact you can export DNG from PhotoLab at all is probably only possible because PureRAW didn’t exist for much of PhotoLab’s life, and it gave a pathway to use DxO RAW conversion with other editors. (Or, in the earlier days, a way to see a fully denoised image for editing.)
ahaha … find all *.DNG files in subdirectories and execute a command to convert them and remove originals ? “heavy lifting” indeed … 100K LOC no less