JSPM – @groupdocs/groupdocs.watermark@25.7.0

Package Exports

@groupdocs/groupdocs.watermark
@groupdocs/groupdocs.watermark/index.js

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Readme

GroupDocs.Watermark for Node.js via Java offers read & write watermark support for the documents of 40+ file formats. Supports watermark search, customization & extraction as well.

Node.js Watermark API Features

Add text and image watermark to supported document formats.
Search and remove text and image watermarks.
Search watermarks in particular objects.
Apply a watermark to images inside a document.
Work with existing watermark objects.
Extract information of watermark objects in a document.
Perform PDF document rasterization.
Fetch document basic information.
Search watermarks by text formatting (font, color, etc.).
Set background image for charts in Excel and PowerPoint documents.
Work with PDF and email attachments.

Supported File Formats

Microsoft Word: DOC, DOT, DOCX, DOCM, DOTX, DOTM, RTF Microsoft Excel: XLSX, XLSM, XLTM, XLT, XLTX, XLS Microsoft PowerPoint: PPTX, PPTM, PPSX, PPSM, POTX, POTM, PPT, PPS Microsoft Visio: VSD, VDX, VSDX, VSTX, VSS, VSSX, VSDM, VSSM, VSTM, VTX, VSX OpenOffice: ODT Email: EML, EMLX, OFT, MSG Fixed Layout: PDF Image: BMP, GIF, JPG/JPEG/JPE, JP2, PNG, TIFF, WEBP

Supported Watermark Types

Text stamps
Text labels
Text as an image watermark
Image watermark

Getting Started with GroupDocs.Watermark for Node.js via Java

Installation

From the command line:

npm i @groupdocs/groupdocs.watermark

Adding text watermak to the PDF document using Node.js

  const loadOptions = new groupdocsWatermark.PdfLoadOptions();
  const watermarker = new groupdocsWatermark.Watermarker(pdfDocumentPath, loadOptions);

  const watermark = new groupdocsWatermark.TextWatermark('Test watermark', new groupdocsWatermark.Font('Arial', 36, groupdocsWatermark.FontStyle.Bold | groupdocsWatermark.FontStyle.Italic));
  const options = new groupdocsWatermark.PdfXObjectWatermarkOptions();
  options.setPageIndex(0);

  watermarker.add(watermark, options);

  watermarker.save(outputFilePath);

Search for watermarks in the document using Node.js

// Create watermarker
  const watermarker = new groupdocsWatermark.Watermarker(documentPath);

  // Search by exact string
  const textSearchCriteria = new groupdocsWatermark.TextSearchCriteria("2017");

  // Find all possible watermarks containing some specific text
  const possibleWatermarks = watermarker.search(textSearchCriteria);

  // Output the results
  console.log(`Found ${possibleWatermarks.getCount()} possible watermark(s)`);