RT presents a checkbox that allows choosing to create uncompressed .tiff files. In that, RT appears to default to making compressed files. However, it is my understanding that the .tiff specification supports several compression types. I’ve done a bit of experimenting and (based on metadata) it looks like RT chooses different compression types from time to time. So far I’ve found compression coded as either “deflate” or “LZW”. A bit of research causes me to think that “deflate” is itself an imprecise term. Apparently there is an Adobe version and a ZIP (sometimes called PKZip) version. While they may be similar there must be some difference.
I suppose it is possible that I shouldn’t care but generally speaking I like to be able to predict the type of file that I’m producing. While making the file smaller is the reason for using compression, I’m more concerned about compatibility. Possibly even to the point of using uncompressed files. In that, I want to be able to produce a file that can be distributed to unknown parties and they will be able to process it. While I have more to learn before weighing in on what kind of compression has the best, or for that matter even desirable, compatibility the idea that I cannot control such is troubling.
Is it possible to control the type of compression used when producing .tiff files?