Inactive Tutor answered 07/13/19
First, you do not need to export tiff files to preserve your edits. You can either have LR write XMP files for your raw files, if you're not converting them to DNGs, or convert your RAW files into DNGs on import.
If you have the raw files in LR, why would you need to bring in the tiff file? You can re-process the raw and export new tiffs to replace the old.
If you don't have the raw files, you can bring in the tiffs by either manually importing them or by synchronizing your folder.
Also, if you are an Adobe CC subscriber, download and install Bridge so you can view your files better.
Inactive Tutor
The DNG saves the processing permanently. You don’t have to reprocess. You can re-export it at different sizes and formats. There’s no reason to bring a tiff into LR unless you want to work on it. If all you want is a way to view your tiffs better, use Bridge to view them. You can print from the DNG that is already in LR.07/15/19
Inactive Tutor
What I’m trying to say is that LR is a dark room program for processing your photos. DNGs are digital negatives. You don’t need to reimport an already processed file into a processing software if your digital negative is still in there. You can print from the digital negative.07/15/19
Richard H.
Thanks for your response. I do convert the files to DNG upon import ... what I want to do is save the editing permanently and be able to open the file at some later time in LR for printing, additional editing or some other reason. I don't want to add the tifs to the catalog at the time of export. Doing that would double the size of the catalog. I don't want to have to recreate the original editing by re-processing.07/14/19