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FDF zef:dwarring last updated on 2022-06-09

[Raku PDF Project] / [FDF Module]

FDF-raku

A Raku module for the creation and manipulation of FDF (Form Data Format) files, including PDF export and import.

Classes/Roles in this Distribution

• FDF - FDF file
• FDF::Annot - FDF Annotations
• FDF::Catalog - FDF Catalog
• FDF::Dict - FDF Main Dictionary
• FDF::Field - FDF Fields
• FDF::Field::AdditionalActions - FDF Field Additional Actions
• FDF::IconFit - FDF IconFits
• FDF::JavaScript - FDF JavaScripts
• FDF::NamedPageRef - FDF Named Page References
• FDF::Page - FDF Pages to be added
• FDF::Template - FDF Page Templates

Synopsis

Export fields from a PDF to an FDF

use PDF::Class;
use FDF;
my PDF::Class $from .= open: "MyDoc.pdf";
my FDF $fdf .= new;

# fill the email field, overriding PDF value
my %fill = :email<[email protected]>;

# Combined import and filling
$fdf.import: :$from, :%fill;
# -OR- import then fill
$fdf.import: :$from;
$fdf.import: :%fill;

note "saving fields :-"
for $fdf.field-hash.sort {
    note " - {.key}: {.value.perl}";
}

$fdf.save-as: "MyDoc.fdf";

List field values in an FDF file

use FDF;
use FDF::Field;
my FDF $fdf .= open: "MyDoc.fdf";

my FDF::Fields @fields = $fdf.fields;
for @fields {
    say .key ~ ': ' ~ .value.raku;
}

Export field data from an FDF to a PDF

use PDF::Class;
use FDF;
my PDF::Class $to .= open: "MyDoc.pdf";
my FDF $fdf .= open: "MyDoc.fdf";

# populate form data from the PDF
$fdf.export: :$to;

# save updated fields
$to.update;

Description

FDF (Form Data Format) is a format for storing form data and formatting or annotations seperately from PDF files.

Bugs and Limitations

Not yet handled:

• Form signing and signature manipulation
• Import/export of annotations and pages
• Custom encodings (/Encoding entry in the FDF dictionary)