How to Convert HTML to PDF in Ruby using Cloud REST API

Download_File_Conversion_Ruby.rb

# API initialization: Create an instance of the conversion APIs
@fileApi = GroupDocsConversionCloud::FileApi.from_keys(@client_id, @client_secret)

# Download PDF File Request
@request = GroupDocsConversionCloud::DownloadFileRequest.new("html-to-pdf/two-pages.pdf", @mystorage)
@response = @fileApi.download_file(@request)

puts("PDF file successfully downloaded." + (@response).to_s )

HTML-to-PDF-Converter-API-Ruby.md

Learn how to convert HTML to PDF in Ruby using REST API:

The following topics shall be covered in this article:

HTML to PDF Conversion REST API and Ruby SDK Installation Convert HTML to PDF in Ruby using REST API HTML to PDF Conversion using Advanced Options in Ruby Online HTML to PDF Converter for Free

HTML_to_PDF_Advanced_Options_Conversion_Ruby.rb

#  Create instance of the HTML to PDF conversion API
@fileApi = GroupDocsConversionCloud::ConvertApi.from_keys(@client_id, @client_secret)

# Set the convert settings for advanced file options

settings = GroupDocsConversionCloud::ConvertSettings.new
settings.file_path = "html-to-pdf/two-pages.html"
settings.format = "pdf"
 
loadOptions = GroupDocsConversionCloud::HtmlLoadOptions.new
loadOptions.page_numbering = true

convertOptions = GroupDocsConversionCloud::PdfConvertOptions.new
convertOptions.center_window = true
convertOptions.compress_images = false
convertOptions.display_doc_title = true
convertOptions.dpi = 1024.0
convertOptions.fit_window = false
convertOptions.from_page = 1
convertOptions.grayscale = false
convertOptions.image_quality = 100
convertOptions.linearize = false
convertOptions.margin_top = 5
convertOptions.margin_left = 5
convertOptions.password = "password"
convertOptions.unembed_fonts = true
convertOptions.remove_unused_streams = true
convertOptions.remove_unused_objects = true
convertOptions.remove_pdfa_compliance = false
 
settings.load_options = loadOptions
settings.convert_options = convertOptions
settings.output_path = "html-to-pdf"

# Convert HTML to PDF
result = @fileApi.convert_document(GroupDocsConversionCloud::ConvertDocumentRequest.new(settings))

puts("HTML file successfully converted to pdf file with advanced file options.")

HTML_to_PDF_Conversion_Ruby.rb

# Create necessary API instances
@fileApi = GroupDocsConversionCloud::ConvertApi.from_keys(@client_id, @client_secret)

# Prepare convert settings
settings = GroupDocsConversionCloud::ConvertSettings.new
settings.file_path = "html-to-pdf/two-pages.html"
settings.format = "pdf"

loadOptions = GroupDocsConversionCloud::HtmlLoadOptions.new
loadOptions.page_numbering = true

settings.load_options = loadOptions
settings.output_path = "html-to-pdf"

# Convert to PDF
result = @fileApi.convert_document(GroupDocsConversionCloud::ConvertDocumentRequest.new(settings))
puts("HTML file successfully converted to pdf file.")

Upload_File_Conversion_Ruby.rb

# API initialization to create an instance of the conversion APIs
@fileApi = GroupDocsConversionCloud::FileApi.from_keys(@client_id, @client_secret)

# Upload file to cloud storage

@htmlfile = "#{Rails.root}/public/groupdocs-files/two-pages.html"
@fileStream = File.new(@htmlfile, "r")

@request = GroupDocsConversionCloud::UploadFileRequest.new("html-to-pdf/two-pages.html", @fileStream, @mystorage)
@response = @fileApi.upload_file(@request)

@fileStream.close()

puts("HTML File Uploading completed." + (@response).to_s )

Utils_for_Conversion_Ruby.rb

# Get your client_id and client_secret from https://dashboard.groupdocs.cloud after free registration.
# Load the gem in your ruby application for http://api.groupdocs.cloud

require 'groupdocs_conversion_cloud'
@client_id = "xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
@client_secret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
# Add your storage name here
@mystorage = "InternalStorage"