u/pexlao

I'm collaborating with A on modifying images in a catalog A sent me. A is using a PC and I'm using a Mac. I unzipped the catalog and then clicked on the catalog to open it and received this message:

unable to open catalog

So I changed the Sharing & Permissions in the folder to Read & Write on my User. Only then I was able to open the catalo and modify the images. After modifying them I zipped the catalog file (.lrcat) and sent it back to A.

The problem is that when A opened the catalog the images had been duplicated. The originals without modifications plus my modified images. I would like to know if anyone has been through the same situation and how you managed to solved it.

Thanks!