A problem I had printing a collage on 13x19 paper was solved by Paul.
Solution made sense when I thought it through.
Reading the post above it seems like you would suggest I download the Classic v10.2 (and pay yearly subscription).
Since I'm full up on internal disc space my plan would be to have just one LR (v10.2) on my laptop.
I'm using the Canon software to upload from my Canon 90D. Then download to LR to massage. I know you ( LR queen) said many times that LR is not a photo library, but it happens. So I have 50k JPEGs in the Cannon software and the same JPEGs (most? edited now) in LRv3.6. Looks like they get duplicated on the resident Dell/Microsoft photo software also. Can I move everything (including v3.6 software) onto an external HD and download v10.2 on the laptop? And then upload from the LR on the external HD to the "blank" LR v10.2?
First you need to understand the difference in application programs and data. The Canon and the Microsoft photo software are used to process photos (image files) Each app will create a derivative of the original based upon the “massaging” that you do in that software.
Lightroom IS a photo management library. In LR3 and Lr Classic, the library is called a catalog.
You do not need anything on your computer except Lightroom.
Lightroom will upload from your Canon Camera Card to a place of your choosing on your disk drive. This can even be to an external disk drive. If you want to use the Microsoft Photo app to display photos, you can export a derivative image for the Microsoft app to use. BUT anything that you can do in the Microsoft app is available in Lightroom. You can. Uninstall the Canon and Microsoft apps and this will save you a tiny bit of disk space. From your description it sounds like you have a lot of duplication with edited image files from the Canon, Microsoft Photos and Lightroom v3.x. If you remove any duplication from your primary disk, you can free up space by having one original image file that is managed by Lightroom. You can store that one copy of each original on an external disk and still have Lightroom Manage the images.
You can do all of this without upgrading from LR3 to Lightroom Classic. But since LR3 is pretty obsolete, I would recommend getting a Lightroom Classic subscription. Upgrading to Classic and cleaning up your workflow are two separate tasks I’m not sure which order I would recommend doing these tasks or if it matters.
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