I have updated my FITS (Flexible Image Transport System) Library
Package. Besides fixing a few bugs related to writing header keywords
under certain conditions, the major improvement is that one can now
write output to the input file even when the dimensions of an image
extension have changed. One can save to the same location in a set of
image extensions or save to the end of the same file or to a new or
different file. Some new examples are included in the demo program
"testfiles" for which executables are available for Linux on Intel, and
Mac OS X on PPC. The routines will compile on Linux with the Portland
Group F77 compiler, and on the Mac with the Absoft FORTRAN compiler.
The output files all pass the FITS File Verifier at
The source code, executables, and documentation can be downloaded from

Donald Gudehus