+\dt \cw{\-\-new\-passphrase} \e{file}
+
+\dd Specify a file name; the first line will be read from this file
+(removing any trailing newline) and used as the new passphrase. If the
+file is empty then the saved key will be unencrypted. \s{CAUTION:} If
+the passphrase is important, the file should be stored on a temporary
+filesystem or else securely erased after use.
+
+The following options do not run PuTTYgen as normal, but print
+informational messages and then quit:
+
+\dt \cw{\-h}, \cw{\-\-help}
+
+\dd Display a message summarizing the available options.
+
+\dt \cw{\-V}, \cw{\-\-version}
+
+\dd Display the version of PuTTYgen.
+
+\dt \cw{\-\-pgpfp}
+
+\dd Display the fingerprints of the PuTTY PGP Master Keys, to aid
+in verifying new files released by the PuTTY team.
+