PAGESIZES(5F)                                                    PAGESIZES(5F)

       pagesizes - HylaFAX page size definitions

       The pagesizes database defines the page dimensions and guaranteed
       reproducible areas (GRA) for well-known page sizes.  The GRA is the
       portion of the page that is guaranteed to be imaged during facsimile
       transmission.  This region is typically less than the full page
       dimensions because of paper roller contacts and other mechanical
       aspects of the printing process in a facsimile machine.

       All HylaFAX programs that require page size information read the
       information from this database using a page size name.  Documents
       should be prepared such that the full page dimensions are employed with
       the imaged area contained within the GRA.

       The system-wide default page size to use in preparing documents for
       transmission is given by the ``default'' entry in the database.  (NB:
       the default entry should be placed last so that inverse matches find
       the real page size name and not the default entry.)

       The page size database is an ASCII file with the following format.
       Each entry consists of whitespace-separated fields:
       name  abbrev  width  height  gra-width  gra-height  top-margin  left-margin
       Fields have the following interpretation:

       name        the full name for the page size; e.g. ISO A4;

       abbrev      an abbreviated version of the full name for use in compact
                   listings such as the receive queue listing printed by

       width       the full width of the page;

       height      the full height of the page;

       gra-width   the width of the GRA;

       gra-height  the height of the GRA;

       top-margin  the margin between the top of the full page and the top of
                   the GRA;

       left-margin the margin between the left side of the full page the left
                   side of the GRA.

       The first two fields must be separated from the subsequent fields by a
       tab character (possibly followed by more whitespace); this is done to
       easily permit blank characters to be included in names.  Otherwise
       fields can be separated by any amount of any kind of whitespace.
       Numbers are all base 10 and in basic measurement units (BMU); defined
       as 1/1200 x 25.4 millimeters for paper output with a scale factor of
       one.  All fields must be present on a single line; otherwise the entry
       is ignored.  Comments are introduced by the ``#'' character and
       continue to the end the line.

       Page size database lookups are either by name or by page dimensions.
       Lookups by name are done by sequentially scanning the entries in the
       database for the first entry that has a matching abbreviation or
       substring of the page size name field.  The string comparisons ignore
       case so, for example, ``a4'' would match a full name of ``ISO A4''.
       Lookups by dimension scan the entire database and return the page with
       the closest dimensions using a straightforward distance metric.  If the
       difference in dimensions of the closest match is greater than 1/2 inch
       on each side, then no page entry is returned for a lookup by dimension.

       hylafax-client(1), faxmail(1), faxstat(1), sendfax(1), sgi2fax(1),

                               December 5, 1994                  PAGESIZES(5F)