Add a watermark to PDF or remove previously added watermarks using Java

Using this Java library, stamp PDF documents with an image or text watermark or remove an already added watermark in a few steps

Add a text or image watermark to PDF documents using Java. Load the PDF document and insert the required watermark into it. Then save the result in a convenient format such as DOCX, PDF, MD, HTML, TXT, DOC, RTF, EPUB, XPS and more, and share the watermarked document with another person. Also remove the watermark from PDF document if the watermark was previously added to the document, and the reasons for adding are not longer relevant.

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PDF – add watermark in Java

With this Java API, developers can add a watermark to PDF online. Just create the watermark using text or an image and then insert that watermark into your PDF document in Java.

Note: there is no need to install any third party applications or libraries. Therefore, our Java software solution is very easy to use.

Remove watermark from PDF – Java

The given Java SDK is also helpful to remove watermarks from PDF. Removing a watermark in PDF means that you can load the desired PDF document stamped with a text or image watermark, remove this watermark from the PDF using Java, and then save the output file in a convenient format – DOC, DOCX, PDF, JPEG, PNG, TIFF and others.

Work with watermark in PDF

To evaluate how to add or remove a watermark in PDF with our Java API, load the PDF and the watermark as an image or text. Then select a convenient export file format – DOC, DOCX, PDF, HTML, RTF, XPS and others.

Use the following example to see how it works:

File needs to add watermarks
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Upload an image you want insert
Select the target format from the list
import com.aspose.words.cloud.*;

ApiClient apiClient = new ApiClient("####-####-####-####-####", "##################", null);
WordsApi wordsApi = new WordsApi(apiClient);

byte[] requestDocument = Files.readAllBytes(Paths.get("Input1.pdf").toAbsolutePath());
byte[] requestImageStream = Files.readAllBytes(Paths.get("Input2.jpg").toAbsolutePath());
WatermarkDataImage requestWatermarkData = new WatermarkDataImage();
requestWatermarkData.setImage(new FileReference(requestImageStream));
InsertWatermarkOnlineRequest insertWatermarkRequest =
    new InsertWatermarkOnlineRequest(requestDocument, requestWatermarkData,
        null, null, null, null, null, null, null, null);
InsertWatermarkOnlineResponse insertWatermarkResult =
    wordsApi.InsertWatermarkOnline(insertWatermarkRequest);

ConvertDocumentRequest convertRequest = new ConvertDocumentRequest(
    insertWatermarkResult.getDocument().iterator().next(), "pdf",
        null, null, null, null, null, null, null);
wordsApi.convertDocument(convertRequest);
import com.aspose.words.cloud.*;

ApiClient apiClient = new ApiClient("####-####-####-####-####", "##################", null);
WordsApi wordsApi = new WordsApi(apiClient);

byte[] requestDocument = Files.readAllBytes(Paths.get("Input.pdf").toAbsolutePath());
WatermarkDataText requestWatermarkData = new WatermarkDataText();
requestWatermarkData.setText("This is the watermark text");
requestWatermarkData.setLayout(WatermarkDataText.LayoutEnum.DIAGONAL);
InsertWatermarkOnlineRequest insertWatermarkRequest =
    new InsertWatermarkOnlineRequest(requestDocument, requestWatermarkData,
        null, null, null, null, null, null);
InsertWatermarkOnlineResponse insertWatermarkResult =
    wordsApi.InsertWatermarkOnline(insertWatermarkRequest);

ConvertDocumentRequest convertRequest = new ConvertDocumentRequest(
    insertWatermarkResult.getDocument().iterator().next(), "pdf",
        null, null, null, null, null, null, null);
wordsApi.convertDocument(convertRequest);
import com.aspose.words.cloud.*;

ApiClient apiClient = new ApiClient("####-####-####-####-####", "##################", null);
WordsApi wordsApi = new WordsApi(apiClient);

byte[] requestDocument = Files.readAllBytes(Paths.get("Input.pdf").toAbsolutePath());
DeleteWatermarkOnlineRequest deleteWatermarkOnline = 
   new DeleteWatermarkOnlineRequest(requestDocument, null, null, null, null, null, null);
DeleteWatermarkOnline deletedWatermark = wordsApi.deleteWatermarkOnline(deleteWatermarkOnline);

ConvertDocumentRequest convertDocument = new ConvertDocumentRequest(
   deletedWatermark.getDocument().iterator().next(), "pdf", 
      null, null, null, null, null, null, null);
wordsApi.convertDocument(convertDocument);
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How to remove watermark in PDF using Java

  1. Install Aspose.Words Cloud for Java
  2. Add a library reference (import the library) to your Java project
  3. Configure API using your app keys
  4. Load PDF document you want to remove the watermark from
  5. Create a request to remove the watermark
  6. Save the result to a convenient file format

Java library to use watermarks in PDF

Install 'Aspose.Words Cloud SDK for Java' using Maven build automation tool.

Add this dependency to your project's POM: aspose-cloud artifact.aspose-cloud-releases http://artifact.aspose.cloud/repo com.aspose aspose-words-cloud 22.4.0

As an alternative, you can clone Aspose.Words Cloud SDK for Java source code from GitHub and use it in your project. Please follow these Instructions to quickly get the necessary security credentials and access our REST API.

System Requirements

Refer to the Repository Documentation to see the details.

Other supported file formats

You can add a watermark to a document in other formats:

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