Macro Description
\F Filename including extension
\f Filename only
\e Extension only
\R Full image resolution (pixels)
\w Width in pixels
\h Height in pixels
\c Number of colors
\b Number of bits per pixel
\P Total number of pages
\p Current page number
\s File size in bytes
\S File size in K (kilobytes)
\d Full path to file (no trailing backslash)
\D Full path to file (with trailing backslash)
\\ Single backslash ('\')