Normally, lombok adds support for all the lombok features directly to your IDE and compiler by plugging into them.However, lombok doesn't cover all tools. For example, lombok cannot plug into javadoc, nor can it plug into the Google Widget Toolkit, both of which run on java sources. Delombok still allows you to use lombok with these tools by preprocessing your java code into java code with all of lombok's transformations already applied.
Delombok can of course also help understand what's happening with your source by letting you look at exactly what lombok is doing 'under the hood'.
Delombok's standard mode of operation is that it copies an entire directory into another directory, recursively, skipping class files, and applying lombok transformations to any java source files it encounters.
Delombok's output format can be configured with command line options (use --format-help for a complete list). A few such options are automatically scanned from input if possible (such as indent). If delombok's formatting is not conforming to your preferred code style, have a look!
