Add Layers to PDF File in Ruby

Aspose.PDF - Add Layers

To add Layers in Pdf document using Aspose.PDF Java for Ruby, simply invoke AddLayers module.

Ruby Code

# The path to the documents directory.

data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'

doc = Rjb::import('com.aspose.pdf.Document').new

page = doc.getPages().add()

operator = Rjb::import('com.aspose.pdf.Operator')

layer = Rjb::import('com.aspose.pdf.Layer').new("oc1", "Red Line")

layer.getContents().add(operator.SetRGBColorStroke(1, 0, 0))

layer.getContents().add(operator.MoveTo(500, 700))

layer.getContents().add(operator.LineTo(400, 700))

layer.getContents().add(operator.Stroke())

page.setLayers(Rjb::import('java.util.ArrayList').new)

page.getLayers().add(layer)

layer = Rjb::import('com.aspose.pdf.Layer').new("oc2", "Green Line")

layer.getContents().add(operator.SetRGBColorStroke(0, 1, 0))

layer.getContents().add(operator.MoveTo(500, 750))

layer.getContents().add(operator.LineTo(400, 750))

layer.getContents().add(operator.Stroke())

page.getLayers().add(layer)

layer = Rjb::import('com.aspose.pdf.Layer').new("oc3", "Blue Line")

layer.getContents().add(operator.SetRGBColorStroke(0, 0, 1))

layer.getContents().add(operator.MoveTo(500, 800))

layer.getContents().add(operator.LineTo(400, 800))

layer.getContents().add(operator.Stroke())

page.getLayers().add(layer)

# Save PDF Document

doc.save(data_dir + "Layers-Added.pdf")

puts "Added Layers Successfully, please check the output file."

Download Running Code

Download Add Layers (Aspose.PDF) from any of the below mentioned social coding sites:

• GitHub