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                                          1109
S E C T I O N H .3                                                  Implementation Notes



          application is different from the one used by the application that produced
          the document.
          The font program with the altered glyph widths may or may not be em-
          bedded. If it is embedded, its widths should exactly match the widths in
          the font dictionary. If the font program is not embedded, Acrobat over-
          rides the widths in the font program on the viewer application’s system
          with the widths specified in the font dictionary.
          It is important that the widths in the font dictionary match the actual
          glyph widths of the font program that was used to produce the document.
          Consumers of PDF files depend on these widths in many different con-
          texts, including viewing, printing, fauxing (font substitution), reflow, and
          word search. These operations may malfunction if arbitrary adjustments
          are made to the widths so that they do not represent the glyph widths in-
          tended by the PDF producer.
          It is recommended that diagnostic and preflight tools check the glyph
          widths in the font dictionary against those in an embedded font program
          and flag any inconsistencies. It would also be helpful if the tools could op-
          tionally check for consistency with the widths in font programs that are
          not embedded. This is useful for checking a PDF file immediately after it
          is produced, when the original font programs are still available.
   Note: This implementation note is also referred to in Section 5.6.3, “CIDFonts”
   (Glyph Metrics in CIDFonts).


5.5.1, “Type 1 Fonts” (Standard Type 1 Fonts (Standard 14 Fonts))
  62. Acrobat 3.0 and earlier viewers may ignore attempts to override the stan-
      dard fonts.

                           TABLE H.3 Names of standard fonts
STANDARD NAME                               ALTERNATIVE

Courier                                     CourierNew

Courier−Oblique                             CourierNew,Italic

Courier−Bold                                CourierNew,Bold

Courier−BoldOblique                         CourierNew,BoldItalic

Helvetica                                   Arial

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