prawn

I am trying to save multiple pngs in one pdf. I'm receiving the PNGs from an API Call to the Endicia Label Server, which is giving me a Base64 Encoded Image as response. Based on this Question: How to convert base64 string to PNG using Prawn without saving on server in Rails def batch_order_labels @orders = Spree::Order.ready_to_ship.limit(1) dt = Date.current.strftime("%d %b %Y ") title = "Labels - #{dt} - #{@orders.count} Orders" Prawn::Document.generate("#{title}.pdf") do |pdf| @orders.each do |order| label = order.generate_label if order.international? @image = label.response_body.scan(/

I want to simulate the behaviour of a table in Prawn, but can't use table because of the limitation of things I can draw inside cells. So I am using bounding boxes in order to create contexts for the elements inside each row. The problem I'm having has to do with the rows. I'm trying this: require 'prawn' Prawn::Document.generate("test.pdf") do move_down 50 bounding_box [0, cursor], width: bounds.width do 20.times do |i| stroke_bounds && start_new_page if (i+1) % 11 == 0 bounding_box [0, cursor], width: bounds.width, height: 50 do fill_color "cccccc" fill_rectangle [0, bounds.height], bounds

I'm creating generator of pdf documents in Ruby on Rails with Prawn gem and I came up with issue that when I have Chinese, Japanese and Cyrillic chars they are displayed incorrectly. I googled out that it's because "when I'm generating font I need to specify, what font should pdf text be rendered with" . Now this isn't the issue, but the fact that my documents will include all different possible chars that gTLD supports . Question 1: Do you know any font for generating pdf documents that will include as many as possible chars (Asian, Europe, Symbols, ...)? Ideally all chars that gTLD supports.

I have a small Ruby program where I'm printing some text out to a PDF using Prawn, but a small portion of the text is non-English characters. (Some of that text is Chinese, some is Greek, etc.). When I run my program, I of course get an error saying Your document includes text that's not compatible with the Windows-1252 character set. (Prawn::Errors::IncompatibleStringEncoding) If you need full UTF-8 support, use TTF fonts instead of PDF's built-in fonts . I know that I need to use a TTF font, but how do I even go about that? Do I need to install it from online? If so, where would I save it to

I have this code in the view prawn_document(:page_size=> "A4", :top_margin => 80, :bottom_margin => 40, :background => "public/uploads/1.png") do |pdf| creation_date = Time.now.strftime('%d-%m-%Y') posts = @posts.each do |post| pdf.pad(10) do pdf.text post.title pdf.text post.text end end pdf.page_count.times do |i| pdf.go_to_page(i + 1) pdf.draw_text "Creation Date : " + creation_date, :at => [200, 780] pdf.draw_text "Page : #{i + 1} / #{pdf.page_count}", :at => [450, -3] end end This gives me the following output: and this As you can see in the first image, the image is not centered. On the

Can you tell me how to insert image which will be a link to for example page 20? I know how to make with normal text: text "<link anchor='page20'>Go to page 20</link>", :inline_format=>true and then on page 20 I have add_dest('page20', dest_fit(page.dictionary)) but how to do this with image ? Prawn does not support this functionality. In fact, even if you placed a formatted_text_box over an image and fill it with white space, it still will not work. An anchor has to include text to work. If you don't mind having text over your image, then that might be a solution. Prawn's own readme states:

I've a problem for adding images into a PDF using Prawn as pdf generator. I'm trying to add image using the following code: def header text "something" image "#{Prawn::DATADIR}/images/logo_small.png" end But app replies to me with the following error: uninitialized constant Prawn::DATADIR Where is the mistake? P.S. My app is running on Rails 3.1 & Ruby 1.9.2. Prawn::DATADIR is new, it has been introduced recently about 2 or 3 months ago. Previously one would have used Prawn::BASEDIR/data instead. If you are using the current 0.12.0 version of the gem, you should stick with Prawn::BASEDIR/data