The text version of the pattern file can include an arbitrary number of comments before the file format version declaration. Each line of a header comment uses double forward slashes ('//') followed by Unicode characters.

By default, importing or compiling a text pattern file (.digipatsrc) into a binary version of the pattern file (.digipat) preserves comments. To remove comments when you create a compiled, binary version of the pattern file, use the -no-comments command-line option in the Digital Pattern Compiler.