CHAPTER 8
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Interactive Features
TABLE 8.92 Entries in the FDF catalog dictionary
KEY
TYPE
VALUE
Version
name
(Optional; PDF 1.4)
The version of the PDF specification to which
this FDF file conforms (for example,
1.4
) if later than the version
specified in the file’s header (see “FDF Header” on page 712). If the
header specifies a later version, or if this entry is absent, the docu-
ment conforms to the version specified in the header.
Note:
The value of this entry is a name object, not a number, and
therefore must be preceded by a slash character (
/
) when written in
the FDF file (for example,
/1.4
).
FDF
Sig
dictionary
dictionary
(Required)
The FDF dictionary for this file (see Table 8.93).
(Optional; PDF 1.5)
A signature dictionary indicating that the doc-
ument is signed using an object digest (see Section 8.7, “Digital Sig-
dictionary whose
Data
entry is an indirect reference to the catalog
and whose
TransformMethod
entry is
Identity
.
TABLE 8.93 Entries in the FDF dictionary
KEY
TYPE
VALUE
F
file specification
array
(Optional)
The
source file
or
target file:
the PDF document file that
this FDF file was exported from or is intended to be imported into.
(Optional)
An array of two byte strings constituting a file identifier
(see Section 10.3, “File Identifiers”) for the source or target file des-
ignated by
F
, taken from the
ID
entry in the file’s trailer dictionary
(see Section 3.4.4, “File Trailer”).
(Optional)
An array of FDF field dictionaries (see “FDF Fields” on
field hierarchy) to be exported or imported. This entry and the
Pages
entry may not both be present.
(Optional)
A status string to be displayed indicating the result of an
action, typically a submit-form action (see “Submit-Form Actions”
PDFDocEncoding
. (See
Pages
entry may not both be present.
ID
Fields
array
Status
PDFDocEncoded
string