PDF Optimize Advanced

Advanced PDF optimization: remove metadata, clean structure, and recompress content

Optimize PDF files by removing unnecessary data and cleaning document structure.

Optimization Features:

  • Remove document metadata (author, title, keywords, creator, producer)
  • Remove embedded thumbnails
  • Clean document catalog and structure
  • Recompress content streams
  • Remove unused objects
  • Preserve page content and formatting

Common Use Cases:

  • Clean up PDF metadata before sharing
  • Reduce file size by removing unused data
  • Prepare documents for archiving
  • Remove sensitive metadata information

Note: This tool uses pdf-lib for optimization. For advanced image compression, consider using dedicated compression tools.

Example Results

2 examples

Clean and Optimize

Remove metadata and compress the PDF

pdf_optimized.pdf View File
View input parameters
{ "sourceFile": "/public/samples/pdf/sample.pdf", "removeMetadata": true, "removeObjectStreams": false, "compress": true }

Maximum Compatibility

Remove object streams for better compatibility with older PDF readers

pdf_optimized.pdf View File
View input parameters
{ "sourceFile": "/public/samples/pdf/sample.pdf", "removeMetadata": true, "removeObjectStreams": true, "compress": true }

Click to upload file or drag and drop file here

Maximum file size: 700MB Supported formats: application/pdf

Remove document metadata (author, title, keywords, creator, producer)

Remove object streams (may increase compatibility but file size may increase)

Compress content streams during optimization

Key Facts

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

Overview

The Advanced PDF Optimizer helps you clean and compress PDF documents by removing hidden metadata, stripping unused objects, and recompressing content streams. It allows you to protect your privacy by deleting author details and creation history while reducing file size for easier sharing and archiving.

When to Use

  • •When you need to strip sensitive metadata like author names, creation dates, and software signatures before sharing a PDF publicly.
  • •When you want to reduce the file size of a PDF by cleaning up its internal structure, removing unused objects, and recompressing content streams.
  • •When preparing PDF documents for long-term archiving where clean, standardized document catalogs are required.

How It Works

  • •Upload your PDF document using the file input field.
  • •Select your optimization preferences, such as removing metadata, removing object streams, or enabling content compression.
  • •Click the process button to let the tool clean the document catalog, strip unused objects, and recompress the streams.
  • •Download the optimized, clean PDF file directly to your device.

Use Cases

Cleaning legal or corporate documents to remove author history and track changes before sending them to clients.
Shrinking bloated PDF manuals or reports by removing redundant objects and compressing content streams for email attachments.
Standardizing PDF structures for digital archives to ensure long-term compatibility and clean document catalogs.

Examples

1. Sanitizing Legal Contracts Before Public Release

Legal Assistant
Background
A legal assistant needs to publish a finalized contract on a public portal but the document contains internal author names, creation dates, and editing software metadata.
Problem
The document contains sensitive metadata that must be completely removed to protect client privacy before publication.
How to Use
Upload the contract PDF, check the 'Remove Metadata' option, keep 'Compress Content' enabled, and run the optimizer.
Example Config
removeMetadata: true, removeObjectStreams: false, compress: true
Outcome
A clean PDF is generated with all author, creator, and producer metadata removed, ready for public distribution.

2. Optimizing Legacy PDFs for Maximum Compatibility

Archivist
Background
An archivist is managing a collection of older PDF documents that need to be readable on legacy hardware and older PDF reader software.
Problem
Modern object streams in the PDFs prevent older PDF readers from rendering the documents correctly.
How to Use
Upload the legacy PDF, check 'Remove Object Streams' to unpack the streams, and check 'Remove Metadata' to clean the catalog.
Example Config
removeMetadata: true, removeObjectStreams: true, compress: true
Outcome
The PDF structure is cleaned and object streams are removed, ensuring the document opens reliably on older PDF readers.

Try with Samples

pdf, video, barcode
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
Grafana Advanced Application Samples
Comprehensive Grafana samples covering advanced dashboard design, alerting configurations, data source integrations, and plugin development
title token advanced
sample
PostgreSQL Advanced Samples
Advanced PostgreSQL database examples including optimization strategies, complex queries, indexing, and performance tuning
title token advanced
sample

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FAQ

What metadata is removed when I select the metadata removal option?

It removes document properties such as the author, title, keywords, creator, producer, and embedded thumbnails.

Will optimizing the PDF affect its layout or visual quality?

No, the optimization process preserves all page content, text formatting, and layout structure while cleaning the underlying file data.

What does the 'Remove Object Streams' option do?

It unpacks compressed object streams, which can increase compatibility with older PDF readers, though it may slightly increase the file size.

Does this tool compress images inside the PDF?

This tool focuses on structural optimization and stream compression; it does not perform lossy downsampling of embedded images.

Is my document data secure during the optimization process?

Yes, your files are processed securely and are not stored permanently or shared with third parties.

API Documentation

Request Endpoint

POST /en/api/tools/pdf-optimize-advanced

Request Parameters

Parameter Name Type Required Description
sourceFile file (Upload required) Yes -
removeMetadata checkbox No Remove document metadata (author, title, keywords, creator, producer)
removeObjectStreams checkbox No Remove object streams (may increase compatibility but file size may increase)
compress checkbox No Compress content streams during optimization

File type parameters need to be uploaded first via POST /upload/pdf-optimize-advanced 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-optimize-advanced": {
      "name": "pdf-optimize-advanced",
      "description": "Advanced PDF optimization: remove metadata, clean structure, and recompress content",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=pdf-optimize-advanced",
      "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]