About fpdf_namedcolors

Extension for the FPDF class (www.fpdf.org) providing broader color definition support and named colors.

Author: @vHeemstra

License: Same as FPDF - Free for all! (Would appreciate the mention however)

Installation

Simply download the PHP file and use the code to extend the FPDF class (or your own class definition).

Name colors

To use named colors, first define them by calling the NameColor method providing a name and a color definition, like so:

$pdf->NameColor('name_of_color', [255,0,0]);

• The name will be used as an array key, so some restrictions apply. Also don't start it with a '#', this is reserved for hex values.
• The color definition can be one of these:
  • Single integer --> Grayscale color [0-255]
  • Array of 3 integers --> RGB color values [0-255]
  • Hex string --> Hex color value '#' + (6, 3 or 1 character(s)) [0-F]

Use named colors and broader definition support

After defining the color, you can use the name as $r in the original Set[..]Color methods. Additionally, the above described ways of defining colors can also be used as the $r value in the Set[..]Color methods, like so:

• $pdf->SetDrawColor('name_of_color');
• $pdf->SetDrawColor(255);
• $pdf->SetDrawColor(255, 255, 255);
• $pdf->SetDrawColor([255, 255, 255]);
• $pdf->SetDrawColor('#f');
• $pdf->SetDrawColor('#fff');
• $pdf->SetDrawColor('#ffffff');

NB: The same works for SetTextColor and SetFillColor.