How can I change the orientation of existing pdf using prawn?

Question

I have a pdf file. I want to rotate all of its pages 90 degrees to the right. How can I achieve this using Prawn gem? When I try to use an existing pdf as a template and try rotate on it, it does not work. I tried the following in vain.

require 'prawn/core'
require 'prawn/layout'
require 'prawn/measurement_extensions'

pdf = Prawn::Document.new(:page_size => [4.in, 6.in], :template => 'orig.pdf', :layout => 'potrait') do |p|
p.rotate(90)
end
pdf.render_file("./test1.pdf")

pdf = Prawn::Document.new(:page_size => [4.in, 6.in], :template => 'orig.pdf', :layout => 'potrait', :rotate => 90)
pdf.render_file("./test2.pdf")

score 2 · Answer 1 · answered Jul 29 '13 at 10:23

2

use :page_layout instead of layout... for mote info please follow this tutorial http://prawn.majesticseacreature.com/docs/0.11.1/Prawn/Document.html

answered Jul 29 '13 at 10:23

HarsHarI

901
4
11

I tried with both of the methods above replacing layout with page_layout. It still does not work. Am I doing something wrong ? – dknight Jul 29 '13 at 10:41
It did not help to me either, when using template it just renders a blank page with no content – Vitaliy Yanchuk Jul 31 '17 at 09:18

How can I change the orientation of existing pdf using prawn?

1 Answers1