Add Watermark in Ruby

Aspose.Words - Add Watermark

To add watermark to word documents using Aspose.Words Java for Ruby, simply invoke insert_watermark_text() method of AddWatermark module.

Ruby Code

def insert_watermark_text(doc, watermark_text)
 
 # Create a watermark shape. This will be a `WordArt` shape.

 # You are free to try other shape types as watermarks.
 shape_type = Rjb::import("com.aspose.words.ShapeType")
 watermark = Rjb::import("com.aspose.words.Shape").new(doc, shape_type.TEXT_PLAIN_TEXT)

 # Set up the text of the watermark.
 watermark.getTextPath().setText(watermark_text)
 watermark.getTextPath().setFontFamily("Arial")
 watermark.setWidth(500)
 watermark.setHeight(100)

 # Text will be directed from the bottom-left to the top-right corner.
 watermark.setRotation(-40)

 # Remove the following three lines if you need a solid black text.
 color = Rjb::import("java.awt.Color")
 watermark.getFill().setColor(color.GRAY)
    
	# Try LightGray to get more Word-style watermark
 watermark.setStrokeColor(color.GRAY)
    
	# Try LightGray to get more Word-style watermark
 # Place the watermark in the page center.
 relativeHorizontalPosition = Rjb::import("com.aspose.words.RelativeHorizontalPosition")
 watermark.setRelativeHorizontalPosition(relativeHorizontalPosition.PAGE)
 watermark.setRelativeVerticalPosition(relativeHorizontalPosition.PAGE)
 wrapType = Rjb::import("com.aspose.words.WrapType")
 watermark.setWrapType(wrapType.NONE)
 verticalAlignment = Rjb::import("com.aspose.words.VerticalAlignment")
 watermark.setVerticalAlignment(verticalAlignment.CENTER)
 horizontalAlignment = Rjb::import("com.aspose.words.HorizontalAlignment")
 watermark.setHorizontalAlignment(horizontalAlignment.CENTER)

 # Create a new paragraph and append the watermark to this paragraph.
 watermarkPara = Rjb::import("com.aspose.words.Paragraph").new(doc)
 watermarkPara.appendChild(watermark)
 sects = doc.getSections().toArray()

 # Insert the watermark into all headers of each document section.
 sects.each do | sect |
 headerFooterType = Rjb::import("com.aspose.words.HeaderFooterType")

 # There could be up to three different headers in each section, since we want

 # the watermark to appear on all pages, insert into all headers.
 insert_watermark_into_header(watermarkPara, sect, headerFooterType.HEADER_PRIMARY)
 insert_watermark_into_header(watermarkPara, sect, headerFooterType.HEADER_FIRST)
 insert_watermark_into_header(watermarkPara, sect, headerFooterType.HEADER_EVEN)
 end
end 
def insert_watermark_into_header(watermarkPara, sect, headerType)
 header = sect.getHeadersFooters().getByHeaderFooterType(headerType)
 if header.nil? then

 # There is no header of the specified type in the current section, create it.
 header = Rjb::import("com.aspose.words.HeaderFooter").new(sect.getDocument(), headerType)
 sect.getHeadersFooters().add(header)
 end

 # Insert a clone of the watermark into the header.
 header.appendChild(watermarkPara.deepClone(true))
end

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