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Ruby PDF converter (SVG, XPS, TIFF, JPG, RTF, TXT, more)

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Sample Ruby code to use PDFTron SDK for direct, high-quality conversion between PDF, XPS, EMF, SVG, TIFF, PNG, JPEG, and other image formats ('pdftron.PDF.Convert' namespace). The sample also shows how to convert any printable document (ex. TXT, RTF, Word, MS Office, DXF, DWG, etc) to PDF or XPS using a universal document converter. Learn more about our Ruby PDF Library and PDF Conversion Library.

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#---------------------------------------------------------------------------------------
# Copyright (c) 2001-2021 by PDFTron Systems Inc. All Rights Reserved.
# Consult LICENSE.txt regarding license information.
#---------------------------------------------------------------------------------------

require '../../../PDFNetC/Lib/PDFNetRuby'
include PDFNetRuby
require '../../LicenseKey/RUBY/LicenseKey'

$stdout.sync = true

#---------------------------------------------------------------------------------------
# The following sample illustrates how to use the PDF.Convert utility class to convert 
# documents and files to PDF, XPS, SVG, or EMF.
#
# Certain file formats such as XPS, EMF, PDF, and raster image formats can be directly 
# converted to PDF or XPS. Other formats are converted using a virtual driver. To check 
# if ToPDF (or ToXPS) require that PDFNet printer is installed use Convert.RequiresPrinter(filename). 
# The installing application must be run as administrator. The manifest for this sample 
# specifies appropriate the UAC elevation.
#
# Note: the PDFNet printer is a virtual XPS printer supported on Vista SP1 and Windows 7.
# For Windows XP SP2 or higher, or Vista SP0 you need to install the XPS Essentials Pack (or 
# equivalent redistributables). You can download the XPS Essentials Pack from:
#        http:#www.microsoft.com/downloads/details.aspx?FamilyId=B8DCFFDD-E3A5-44CC-8021-7649FD37FFEE&displaylang=en
# Windows XP Sp2 will also need the Microsoft Core XML Services (MSXML) 6.0:
#         http:#www.microsoft.com/downloads/details.aspx?familyid=993C0BCF-3BCF-4009-BE21-27E85E1857B1&displaylang=en
#
# Note: Convert.fromEmf and Convert.toEmf will only work on Windows and require GDI+.
#
# Please contact us if you have any questions.    
#---------------------------------------------------------------------------------------

# Relative path to the folder containing the test files.
$inputPath = "../../TestFiles/"
$outputPath = "../../TestFiles/Output/"

# convert from a file to PDF automatically
def ConvertToPdfFromFile()
	testfiles = [
		["simple-word_2007.docx","docx2pdf.pdf"],
		["simple-powerpoint_2007.pptx","pptx2pdf.pdf"],
		["simple-excel_2007.xlsx","xlsx2pdf.pdf"],
		["simple-text.txt","txt2pdf.pdf"],
		["butterfly.png", "png2pdf.pdf"],
		["simple-xps.xps", "xps2pdf.pdf"]
	]
	

	
	ret = 0
	for testfile in testfiles
		begin
			pdfdoc = PDFDoc.new()
			inputFile = testfile[0]
			outputFile = testfile[1]
			Convert.ToPdf(pdfdoc,  $inputPath + inputFile)
			pdfdoc.Save($outputPath + outputFile, SDFDoc::E_compatibility)
			pdfdoc.Close()
			puts "Converted file: " + inputFile + "\nto: " + outputFile
		rescue
			ret = 1
		end
	end
	
	return ret
end

def ConvertSpecificFormats()
	ret = 0
	begin
		# Start with a PDFDoc to collect the converted documents
		pdfdoc = PDFDoc.new()
		s1 = $inputPath + "simple-xps.xps"
		
		puts "Converting from XPS"
		Convert.FromXps(pdfdoc, s1)
		outputFile = "xps2pdf v2.pdf"
		pdfdoc.Save($outputPath + outputFile, SDFDoc::E_remove_unused)
		puts "Saved " + outputFile

		# Convert the TXT document to PDF
		set =  ObjSet.new
		options = set.CreateDict()
		# Put options
		options.PutNumber("FontSize", 15)
		options.PutBool("UseSourceCodeFormatting", true)
		options.PutNumber("PageWidth", 12)
		options.PutNumber("PageHeight", 6)

		s1 = $inputPath + "simple-text.txt"
		puts "Converting from txt"
		Convert.FromText(pdfdoc, s1)
		outputFile = "simple-text.pdf"
		pdfdoc.Save($outputPath + outputFile, SDFDoc::E_remove_unused)
		puts("Saved " + outputFile)

		# Convert the two page PDF document to SVG
		outputFile = "pdf2svg v2.svg"
		pdfdoc = PDFDoc.new($inputPath + "newsletter.pdf")
		puts "Converting pdfdoc to SVG"
		Convert.ToSvg(pdfdoc, $outputPath + outputFile)
		puts "Saved " + outputFile
		
		# Convert the PNG image to XPS
		puts "Converting PNG to XPS"
		outputFile = "butterfly.xps"
		Convert.ToXps($inputPath + "butterfly.png", $outputPath + outputFile)
		puts "Saved " + outputFile
		
		# Convert PDF document to XPS
		puts "Converting PDF to XPS"
		outputFile = "newsletter.xps"
		Convert.ToXps($inputPath + "newsletter.pdf", $outputPath + outputFile)
		puts "Saved " + outputFile

		# Convert PDF document to HTML
		puts "Converting PDF to HTML"
		outputFile = "newsletter"
		Convert.ToHtml($inputPath + "newsletter.pdf", $outputPath + outputFile)
		puts "Saved newsletter as HTML"

		# Convert PDF document to EPUB
		puts "Converting PDF to EPUB"
		outputFile = "newsletter.epub"
		Convert.ToEpub($inputPath + "newsletter.pdf", $outputPath + outputFile)
		puts "Saved " + outputFile
		
		puts "Converting PDF to multipage TIFF"
		tiff_options = TiffOutputOptions.new
		tiff_options.SetDPI(200)
		tiff_options.SetDither(true)
		tiff_options.SetMono(true)
		Convert.ToTiff($inputPath + "newsletter.pdf", $outputPath + "newsletter.tiff", tiff_options)
		puts "Saved newsletter.tiff"
	rescue
		ret = 1
	end
	return ret
end
	
def main()
	# The first step in every application using PDFNet is to initialize the 
	# library. The library is usually initialized only once, but calling 
	# Initialize() multiple times is also fine.
	PDFNet.Initialize(PDFTronLicense.Key)
	
	# Demonstrate Convert.ToPdf and Convert.Printer
	err = ConvertToPdfFromFile()
	if err == 1
		puts "ConvertFile failed"
	else
		puts "ConvertFile succeeded"
	end
	# Demonstrate Convert.[FromEmf, FromXps, ToEmf, ToSVG, ToXPS]
	err = ConvertSpecificFormats()
	if err == 1
		puts "ConvertSpecificFormats failed"
	else
		puts "ConvertSpecificFormats succeeded"
	end
	PDFNet.Terminate
	puts "Done."
end

main()