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PDF::Font::Loader cpan:WARRINGD last updated on 2019-12-12

NAME

PDF::Font::Loader

SYNPOSIS

# load a font from a file
use PDF::Font::Loader :load-font;

my $deja = PDF::Font::Loader.load-font: :file<t/fonts/DejaVuSans.ttf>;
my $deja = load-font( :file<t/fonts/DejaVuSans.ttf> );

# find/load system fonts; requires fontconfig
use PDF::Font::Loader :load-font, :find-font;
$deja = load-font( :family<DejaVu>, :slant<italic> );
my Str $file = find-font( :family<DejaVu>, :slant<italic> );
my $deja-vu = load-font: :$file;

# use the font to add text to a PDF
use PDF::Lite;
my PDF::Lite $pdf .= new;
$pdf.add-page.text: {
   .font = $deja;
   .text-position = [10, 600];
   .say: 'Hello, world';
}
$pdf.save-as: "/tmp/example.pdf";

DESCRIPTION

This module provdes font loading and handling for PDF::Lite, PDF::API6 and other PDF modules.

METHODS

load-font

A class level method to create a new font object.

PDF::Font::Loader.load-font(Str :$file);

Loads a font file.

parameters:

• :$file

  Font file to load. Currently supported formats are:

  * Open-Type (`.otf`)
  
  
  * True-Type (`.ttf`)
  
  
  * Postscript (`.pfb`, or `.pfa`)
  

PDF::Font::Loader.load-font(Str :$family);

my $vera = PDF::Font::Loader.load-font: :family<vera>;
my $deja = PDF::Font::Loader.load-font: :family<Deja>, :weight<bold>, :width<condensed> :slant<italic>);

Loads a font by a fontconfig name and attributes.

Note: Requires fontconfig to be installed on the system.

parameters:

• :$family

  Family name of an installed system font to load.

• :$weight

  Font weight, one of: thin, extralight, light, book, regular, medium, semibold, bold, extrabold, black or a number in the range 100 .. 900.

• :$stretch

  Font stretch, one of: normal, ultracondensed, extracondensed, condensed, or expanded

• :$slant

  Font slat, one of: normal, oblique, or italic

find-font

find-font(Str :$family,     # e.g. :family<vera>
          Str :$weight,     # thin|extralight|light|book|regular|medium|semibold|bold|extrabold|black|100..900
          Str :$stretch,    # normal|[ultra|extra]?[condensed|expanded]
          Str :$slant,      # normal|oblique|italic
          );

Locates a matching font-file. Doesn't actually load it.

my $file = PDF::Font::Loader.find-font(:family<Deja>, :weight<bold>, :width<condensed>, :slant<italic>);
say $file;  # /usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-BoldOblique.ttf
my $font = PDF::Font::Loader.load-font( :$file )';

INSTALL

• PDF::Font::Loader depends on Font::FreeType which further depends on the freetype library, so you must install that prior to installing this module.

• Installation of the fontconfig package and command-line tools is strongly recommended.

BUGS AND LIMITATIONS

• Font subsetting is not yet implemented. I.E. fonts are always fully embedded, which may result in large PDF files.