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Hi Andrew, I wonder if this a problem with Photoshop not reading the exif metadata tags (or rather, the tags where the resolution is stored). You might take a look at the exif output (exiftool[1] is nice, I'm sure there's a Python wrapper for it) and compare the values of the tags. If necessary, you could update the tags Photoshop wants to read with the correct values. HTH. Best, Bridger [1] https://www.sno.phy.queensu.ca/~phil/exiftool/ On Fri, Nov 1, 2019, 7:41 PM Perrine, Andrew <[log in to unmask]> wrote: > Hi: > > I’m working on a code project to lessen our manual overhead in converting > image files (and also unchain us from having to use Photoshop’s batch > processing capabilities for things we can do in the background instead). > One of our vendors has us create JP2s for them and put them in a different > directory structure. While I’m able to make all the files for this and move > them to where they are in the directory structure, I can’t seem to figure > out how to get the JP2s to save with the Resolution data of the original > TIFFs intact. This causes weirdness when we open them up in photoshop, > since the default behavior there is to interpret this as having a > resolution of 72 PPI (they’re at 300). > > The command I’m using so far is the simple `rezimg.save(jp2name, > quality_mode="dB", quality_layers=db)`, with dB having to change to meet > their arbitrary file size standards for derivatives. > > Can anyone give any advice here? > > Best, > > --Andy P. >