PDF Watermark Tool

Apply document-level or page-level text/shape watermarks with rotation and transparency

Add visible watermark overlays to an existing PDF.

Supports:

  • Document-level (all pages) or selected pages
  • Text watermark (tiling optional)
  • Shape watermark (rectangle or circle)
  • Rotation angle and opacity control

Example Results

2 examples

Document-level Tiled Text Watermark

Applies CONFIDENTIAL text watermark across all pages

watermark-tool-example1.pdf View File
View input parameters
{ "inputPdf": "/Users/quyue/www/elysia-tools/public/samples/pdf/pdf-2026-02-11-source-2pages.pdf", "mode": "document", "watermarkType": "text", "watermarkText": "CONFIDENTIAL", "rotateDeg": -30, "opacity": 0.2, "fontSize": 48, "watermarkColor": "#D93838", "tile": true }

Page-level Circle Watermark

Adds a circle watermark only on page 2

watermark-tool-example2.pdf View File
View input parameters
{ "inputPdf": "/Users/quyue/www/elysia-tools/public/samples/pdf/pdf-2026-02-11-source-2pages.pdf", "mode": "page", "pageSelection": "2", "watermarkType": "shape", "shapeType": "circle", "rotateDeg": -20, "opacity": 0.35, "watermarkColor": "#2B50C7", "tile": false }

Click to upload file or drag and drop file here

Maximum file size: 100MB Supported formats: application/pdf

Key Facts

Category
Documents & PDF
Input Types
file, select, text, number, color, checkbox
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

The PDF Watermark Tool allows you to securely protect or label your documents by applying customizable text or shape overlays. You can easily adjust the rotation, opacity, and color of your watermarks, and choose to apply them to the entire document or specific pages.

When to Use

  • •Adding 'CONFIDENTIAL' or 'DRAFT' labels to sensitive business documents.
  • •Protecting intellectual property by stamping your brand or name on PDF files.
  • •Highlighting specific pages in a document with custom shape or text overlays.

How It Works

  • •Upload your PDF file to the tool.
  • •Select whether to apply the watermark to the whole document or specific page numbers.
  • •Choose between text or shape watermarks and customize the appearance using rotation, opacity, and color settings.
  • •Process the file to generate and download your watermarked PDF.

Use Cases

Protecting internal reports with a tiled 'CONFIDENTIAL' watermark.
Adding a subtle company logo or shape stamp to professional portfolios.
Marking specific pages of a contract as 'DRAFT' for review purposes.

Examples

1. Document-level Tiled Text Watermark

Background
A user needs to distribute a sensitive internal report to a wider team.
Problem
The document needs to be clearly marked as confidential across every page to prevent unauthorized sharing.
How to Use
Upload the PDF, select 'Document Level' mode, choose 'Text' type, set the text to 'CONFIDENTIAL', and enable the 'Tile' option.
Outcome
The PDF is generated with the word 'CONFIDENTIAL' repeated across every page in a subtle red, rotated font.

2. Page-level Circle Watermark

Background
A designer is sending a proof of a multi-page document to a client.
Problem
The client needs to focus on a specific page that requires approval, but the rest of the document should remain unmarked.
How to Use
Upload the PDF, select 'Page Level' mode, enter '2' in the page selection, choose 'Shape' type, and select 'Circle'.
Outcome
A semi-transparent blue circle is applied only to the second page of the document, highlighting it for the client.

Try with Samples

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FAQ

Can I apply a watermark to only one page?

Yes, select 'Page Level' in the Apply Mode and enter the specific page number in the Page Selection field.

What types of watermarks are supported?

You can add text-based watermarks or geometric shapes like rectangles and circles.

Is it possible to rotate the watermark?

Yes, you can set the rotation angle between -90 and 90 degrees.

Can I adjust the transparency of the watermark?

Yes, the opacity setting allows you to control how visible the watermark is, ranging from 0.05 to 1.0.

Does the tool support tiling text watermarks?

Yes, you can enable the 'Tile Watermark' option to repeat the text across the entire page.

API Documentation

Request Endpoint

POST /en/api/tools/pdf-watermark-tool

Request Parameters

Parameter Name Type Required Description
inputPdf file (Upload required) Yes -
mode select No -
pageSelection text No -
watermarkType select No -
watermarkText text No -
shapeType select No -
rotateDeg number No -
opacity number No -
fontSize number No -
watermarkColor color No -
tile checkbox No -

File type parameters need to be uploaded first via POST /upload/pdf-watermark-tool to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-pdf-watermark-tool": {
      "name": "pdf-watermark-tool",
      "description": "Apply document-level or page-level text/shape watermarks with rotation and transparency",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=pdf-watermark-tool",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]