gistfile1.txt

     convert image -format format -o outfile
                convert image to type format and write the result to outfile.

                As with create, the correct filename extension will be added
                only if it isn't part of the provided name.  Format is one of:

                      UDRW - UDIF read/write image
                      UDRO - UDIF read-only image
                      UDCO - UDIF ADC-compressed image
                      UDZO - UDIF zlib-compressed image
                      UDBZ - UDIF bzip2-compressed image (Mac OS X 10.4+ only)
                      UFBI - UDIF entire image with MD5 checksum
                      UDRo - UDIF read-only (obsolete format)
                      UDCo - UDIF compressed (obsolete format)
                      UDTO - DVD/CD-R master for export
                      UDxx - UDIF stub image
                      UDSP - SPARSE (grows with content)
                      UDSB - SPARSEBUNDLE (grows with content; bundle-backed)
                      RdWr - NDIF read/write image (deprecated)
                      Rdxx - NDIF read-only image (Disk Copy 6.3.3 format)
                      ROCo - NDIF compressed image (deprecated)
                      Rken - NDIF compressed (obsolete format)
                      DC42 - Disk Copy 4.2 image

                In addition to the compression offered by some formats, the
                UDIF and NDIF read-only formats skip unused space in HFS,
                ExFAT, and MS-DOS (FAT, FAT32) filesystems.  For UDZO,
                -imagekey zlib-level=value allows the zlib compression level
                to be specified ala gzip(1).  The default compression level is
                1 (fastest).

                Common options: -encryption, -stdinpass, -certificate,
                -srcimagekey, -tgtimagekey, -shadow and related,
                -puppetstrings, and -plist.

                Other options:
                -align alignment
                             The default is 4 (2K).
                -pmap        add partition map.
                             When converting a NDIF to a any variety of UDIF,
                             or when converting an unpartitioned UDIF, the
                             default is true.
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