Previous Next

                                                  929
          SECTION 10.7                                                                Tagged PDF



KEY                        TYPE   VALUE

RubyPosition               name   (Optional; inheritable; PDF 1.5) The placement of the RT structure element
                                  relative to the RB element in a ruby assembly:
                                     Before       The RT content is to be aligned along the before edge of
                                                  the element.
                                     After        The RT content is to be aligned along the after edge of the
                                                  element.
                                     Warichu      The RT and associated RP elements are to be formatted as a
                                                  warichu, following the RB element.
                                     Inline       The RT and associated RP elements are to be formatted as a
                                                  parenthesis comment, following the RB element.
                                  Default value: Before.

GlyphOrientationVertical   name   (Optional; inheritable; PDF 1.5) Specifies the orientation of glyphs when
                                  the inline-progression direction is top to bottom or bottom to top.
                                  This attribute may take one of the following values:
                                     angle     A number representing the clockwise rotation in degrees of
                                               the top of the glyphs relative to the top of the reference area.
                                               Must be a multiple of 90 degrees between -180 and +360.
                                     Auto      Specifies a default orientation for text, depending on whether
                                               it is fullwidth (as wide as it is high). Fullwidth Latin and
                                               fullwidth ideographic text (excluding ideographic
                                               punctuation) is set with an angle of 0. Ideographic
                                               punctuation and other ideographic characters having
                                               alternate horizontal and vertical forms use the vertical form
                                               of the glyph. Non-fullwidth text is set with an angle of 90.
                                     Default value: Auto.

                                  This attribute is used most commonly to differentiate between the pre-
                                  ferred orientation of alphabetic (non-ideographic) text in vertically writ-
                                  ten Japanese documents (Auto or 90) and the orientation of the
                                  ideographic characters and/or alphabetic (non-ideographic) text in west-
                                  ern signage and advertising (90).
                                  It affects both the alignment and width of the glyphs. If a glyph is perpen-
                                  dicular to the vertical baseline, its horizontal alignment point is aligned
                                  with the alignment baseline for the script to which the glyph belongs. The
                                  width of the glyph area is determined from the horizontal width font char-
                                  acteristic for the glyph.

Previous Next