S E C T I O N H .3
1105
Implementation Notes
37. In a document containing articles, if the first page that has an article bead
does not have a
B
entry, Acrobat viewers rebuild the
B
array for all pages of
the document.
38. In PDF 1.2, additional-actions dictionaries were inheritable; beginning
with PDF 1.3, they are not inheritable.
39. Acrobat viewers report an error the first time they find an unknown oper-
ator or an operator with too few operands, but continue processing the
content stream. No further errors are reported.
40. When printing, Acrobat performs only linear interpolation, regardless of
the value of the
Order
entry.
41. Since Type 2 functions are not defined in PDF 1.2 or earlier versions,
Acrobat 3.0 (whose native file format is PDF 1.2) reports an Invalid Func-
tion Resource error if it encounters a function of this type.
42. Since Type 3 functions are not defined in PDF 1.2 or earlier versions,
Acrobat 3.0 (whose native file format is PDF 1.2) reports an error, “Invalid
Function Resource,” if it encounters a function of this type.
43. Since Type 4 functions are not defined in PDF 1.2 or earlier versions,
Acrobat 3.0 (whose native file format is PDF 1.2) reports an error, “Invalid
Function Resource,” if it encounters a function of this type.
44. Acrobat uses single-precision floating-point numbers for all real-number
operations in a type 4 function.