Set the font color in prawn

Question

Im using prawn to generate a PDF output in a rails app. How do i change the color of the outputted text?

score 34 · Accepted Answer · edited Jan 03 '22 at 04:54

34

Have you tried fill_color? Code below should work:

require "rubygems"
require "prawn" 

Prawn::Document.generate "hello.pdf" do 
  fill_color "0000ff" 
  text_box "Hello World (in blue)", :at => [200,720], :size => 32 
end

edited Jan 03 '22 at 04:54

BenKoshy

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answered Jan 07 '10 at 10:28

miku

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1

":at is no longer a valid option with text.use draw_text or text_box instead" – BenKoshy Jan 03 '22 at 04:49

score 6 · Answer 2 · answered Aug 20 '13 at 15:42

if you use any 1.x version (it's only a pre-release as of writing) you can also use:

Gem install:

$ gem install prawn --pre

Code:

require "rubygems"
require "prawn" 

Prawn::Document.generate "hello.pdf" do 
  text "Hello World (in blue)", :color => "0000ff", :size => 32 
end

score 3 · Answer 3 · answered May 27 '10 at 06:42

3

Note that you can also set a CMYK color (in this example 100% key black):

fill_color(0,0,0,100)

answered May 27 '10 at 06:42

Gawin

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score 1 · Answer 4 · answered Jan 03 '22 at 04:58

Use the `color` option

text "Red color here", color: 'FF0000'

And the result:

With the utmost respect, there is no need to use fill_color as of 2022 because you have to manually set and then unset the color - IMO it's much better to set the color directly via the prawn DSL (domain specific language).

Set the font color in prawn

4 Answers4

Use the color option

Use the `color` option