Probably the biggest is that it currently only works with Raw files, not with JPEGs or other compressed image formats. It's also only available in Adobe Camera Raw, though the company says it ...

Finally, Adobe DNG Converter is a free tool for ... so it’s a great option if you need to convert a lot of RAW images. Each camera brand has a unique RAW format. The file extension on a Nikon ...

There are numerous proprietary RAW formats (see below), and except for Adobe's DNG, most general-purpose image editing applications do not recognize them. Camera vendors provide their own software ...