Add Watermark via Java

Add watermarks to PDF document programmatically using Aspose.PDF for Java

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Add Watermark to PDF File Using Java Tool

Add Watermark to PDF File, we’ll use Aspose.PDF for Java API, which is a feature-rich, powerful, and easy-to-use conversion API for the Java platform. You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.

Repository

<repository>
    <id>AsposeJavaAPI</id>
    <name>Aspose Java AP</name>
    <url>https://releases.aspose.com/java/repo/</url>
</repository>

Dependency

<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-pdf</artifactId>
<version>version of aspose-pdf API</version>
</dependency>

Add Watermark via Java

You need Aspose.PDF for Java to try the code in your environment.

  1. Load the PDF with an instance of Document.
  2. Create an instance of WatermarkArtifact.
  3. Set properties of WatermarkArtifact object.
  4. Add watermark using method Add of Aspose.Pdf.Page.Artifacts collection class.
  5. Save PDF file

Add Watermark to PDF - Java

Document pdfDocument = new Document(DATA_DIR.resolve("sample.pdf").toString());
com.aspose.pdf.WatermarkArtifact artifact = new com.aspose.pdf.WatermarkArtifact();
artifact.setImage(DATA_DIR.resolve("watermark.jpg").toString());
artifact.setArtifactHorizontalAlignment(com.aspose.pdf.HorizontalAlignment.Center);
artifact.setArtifactVerticalAlignment(com.aspose.pdf.VerticalAlignment.Center);
artifact.setRotation(15);
artifact.setOpacity(1);
artifact.setBackground(true);
pdfDocument.getPages().get_Item(1).getArtifacts().add(artifact);

//save result pdf to file
pdfDocument.save("add_watermark.pdf", com.aspose.pdf.SaveFormat.Pdf);
pdfDocument.close();