Rails: Convert HTML to PDF? [closed]

Answer 1

Try WickedPDF, PDF generator (from HTML) plugin.

Here is example

gem 'wicked_pdf'  
gem 'wkhtmltopdf-binary' 
#wicked_pdf is a wrapper for wkhtmltopdf, you'll need to install that, too

In Your Controller(I supposed you are in show method):

    respond_to  do |format|
      format.html
      format.pdf do
        pdf = render_to_string :pdf => 'test',
                         layout: 'pdf.html.erb',
                         template: 'show.pdf.slim',
                         header: { :right => '[page] of [topage]'},
                         margin: {top: 0,
                                  bottom: 0,
                                  left: 0,
                                  right: 0},
                         outline: {outline: true,
                                   outline_depth: 2}
        end
     end

In your view for PDF link

= link_to 'Download Pdf', you_show_path(@uour_object, format: :pdf)

If you want to send pdf in email attachment, first save your pdf file in public or temp folder then in mailer class (e.g. in mailers/e_mailer.rb)

attachments["test.pdf"] = File.read(Rails.root.join('public',"test.pdf"))
mail(:to => to, :cc => cc , :subject => "subject")

After sending email you can delete file

File.delete(Rails.root.join("public", "test.pdf"))

Answer 2

I would like to suggest you the HTML to PDF solution by https://grabz.it.

They have a very flexible and simple-to-use screenshot API which can be used by any type of Ruby application.

If you want to try it, at first you should get the authorization app key + secret and the development free SDK

Then, in your app, the implementation steps would be:

//initialization    
require 'grabzit'
grabzItClient = GrabzIt::Client.new("APPLICATION KEY", "APPLICATION SECRET")

//capturing the url to PDF
grabzItClient.url_to_pdf("http://www.google.com")   

Next is the saving. You can use one of the two save methods, save if accessible callback handle available:

grabzItClient.save("http://www.example.com/handler/index")  

And save_to if you need a synchronous save (which will force your application to wait while the screenshot is created):

filepath = "images/result.jpg"
grabzItClient.save_to(filepath) 

Check the documentation for details about the saving.

That's all. It's possible to get other kinds of screenshots such as image screenshots as well.

Answer 3

Have you tried looking at html2pdf? the home page is http://html2pdf.seven49.net/Web/

There is also a sourceforge project of it.

Alan

Answer 4

There is for sure no direct way to do this in Ruby (at least there wasn't when I was trying to do it couple of months ago). If you really can't avoid generating your pdfs from html, you should probably look around for some external tools or services for this purpose.

Good luck!

Answer 5

HTMLDOC?

• converts HTML to PDF;
• Free and Open Source (commercial support available);
• can be used as...
  • ...standalone application,
  • ...for batch document processing,
  • ...or run as a web-based service;
• interface is CLI or GUI.

Answer 6

I know this question is almost 5 years old at this point. However, new options are available.

Try Shrimp! https://github.com/adeven/shrimp