PDF Redaction Helper

Cover sensitive areas with black boxes during PDF rendering output

Mask sensitive information by drawing opaque redaction rectangles.

Input format:

JSON array: [{"page":1,"x":100,"y":120,"width":180,"height":20,"label":"Name"}]
Or CSV lines: page,x,y,width,height,label

Coordinates are in PDF points with bottom-left origin.

Example Results

2 examples

JSON-based Multi-field Redaction

Masks name and ID regions across multiple pages and shows white labels on black bars

pdf-redaction-helper-example1.pdf View File

View input parameters

{ "sourceFile": "/Users/quyue/www/elysia-tools/public/samples/pdf/pdf-2026-02-19-source-4pages.pdf", "redactionRects": "[{\"page\":1,\"x\":92,\"y\":600,\"width\":220,\"height\":22,\"label\":\"FULL NAME\"},{\"page\":2,\"x\":100,\"y\":520,\"width\":260,\"height\":20,\"label\":\"ID NUMBER\"}]", "showLabel": true, "labelFontSize": 8 }

CSV Quick Redaction Without Labels

Uses line-based CSV coordinates for fast masking of email and phone fields

pdf-redaction-helper-example2.pdf View File

View input parameters

{ "sourceFile": "/Users/quyue/www/elysia-tools/public/samples/pdf/pdf-2026-02-19-source-4pages.pdf", "redactionRects": "1,80,560,300,24,EMAIL\n3,110,470,240,20,PHONE", "showLabel": false, "labelFontSize": 8 }

Source PDF File *

Click to upload file or drag and drop file here

Maximum file size: 300MB Supported formats: application/pdf

Redaction Rectangles *

Show Redaction Label

Label Font Size

Key Facts

Category: PDF Tools
Input Types: file, textarea, checkbox, number
Output Type: file
Sample Coverage: 4
API Ready: Yes

Overview

Mask sensitive information by drawing opaque redaction rectangles. **Input format:** - JSON array: `[{"page":1,"x":100,"y":120,"width":180,"height":20,"label":"Name"}]` - Or CSV lines: `page,x,y,width,height,label` Coordinates are in PDF points with bottom-left origin.

When to Use

•Use it when you need to process pdf content quickly in the browser.
•Helpful for pdf tools workflows that need repeatable inputs and fast results.
•A good fit when you want to test with real files before running the same workflow in code or API calls.

How It Works

•Provide Source PDF File, Redaction Rectangles, Show Redaction Label, Label Font Size as input to the tool.
•The tool processes the request and returns a file result.
•For file workflows, start with representative samples such as pdf test files to verify edge cases and output quality.

Use Cases

Process pdf data during debugging or QA.

Validate expected output before using the API or automation flows.

Test the workflow with representative sample files and edge cases.

Try with Samples

pdf, file

PDF Samples

Generated PDF samples from tools dated 2026-02-01 to 2026-02-10

title token pdf

pdf

Markdown Slide Deck Samples

Remark/Marp style Markdown slide decks for testing PDF export layouts

preferred input family pdf

pdf

Text with Sensitive Data Samples

Text containing various types of sensitive data for testing data masking (phones, emails, ID cards, bank cards)

task process

sample

Log Files with Sensitive Data

Sample log files containing various types of PII (Personally Identifiable Information) for testing PII detection and log redaction tools

keywords redaction,privacy,sensitive

sample

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FAQ

What does PDF Redaction Helper do?

PDF Redaction Helper helps you process pdf content online without setting up a separate local script or app.

When should I use this tool?

Use it when you need a quick process workflow, want to verify output, or need a browser-based utility for pdf tools tasks.

Can I try this tool with sample data?

Yes. This page can recommend related sample files so you can test the workflow immediately.

What inputs does PDF Redaction Helper accept?

PDF Redaction Helper accepts Source PDF File, Redaction Rectangles, Show Redaction Label, Label Font Size and supports file uploads for 1 field.

Is there an API for PDF Redaction Helper?

Yes. The tool page includes an API endpoint so you can move from manual testing to scripted usage.

API Documentation

Request Endpoint

POST /en/api/tools/pdf-redaction-helper

Request Parameters

Parameter Name	Type	Required	Description
sourceFile	file (Upload required)	Yes	-
redactionRects	textarea	Yes	-
showLabel	checkbox	No	-
labelFontSize	number	No	-

File type parameters need to be uploaded first via POST /upload/pdf-redaction-helper 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-redaction-helper": {
      "name": "pdf-redaction-helper",
      "description": "Cover sensitive areas with black boxes during PDF rendering output",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=pdf-redaction-helper",
      "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]

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