PDF Compress Optimize

Smart PDF optimization: image downsampling, redundant object cleanup, stream compression

Compress and optimize PDF size using Ghostscript and qpdf pipeline.

Optimization steps:

Downsample color/gray/mono images
Font subsetting and duplicate image detection
Stream recompression and object stream optimization
Optional linearization for web delivery

Example Results

2 examples

Balanced eBook Compression

Applies ebook profile with linearization to reduce size while preserving readable quality

pdf-compress-optimize-example1.pdf View File

View input parameters

{ "sourceFile": "/Users/quyue/www/elysia-tools/public/samples/pdf/pdf-2026-02-19-source-4pages.pdf", "quality": "ebook", "imageDpi": 0, "linearize": true }

Maximum Screen Compression

Uses screen profile and explicit 110 DPI override for strongest file size reduction

pdf-compress-optimize-example2.pdf View File

View input parameters

{ "sourceFile": "/Users/quyue/www/elysia-tools/public/samples/pdf/pdf-2026-02-19-source-4pages.pdf", "quality": "screen", "imageDpi": 110, "linearize": false }

Source PDF File *

Click to upload file or drag and drop file here

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

Compression Profile

Image DPI Override

Linearize for Web

Key Facts

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

Overview

Compress and optimize PDF size using Ghostscript and qpdf pipeline. **Optimization steps:** - Downsample color/gray/mono images - Font subsetting and duplicate image detection - Stream recompression and object stream optimization - Optional linearization for web delivery

When to Use

•Use it when you need to compress PDF files 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, Compression Profile, Image DPI Override, Linearize for Web 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 files test files to verify edge cases and output quality.

Use Cases

Compress PDF files 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, image, 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

AVIF Samples

Sample AVIF images in different aspect ratios and themes with modern compression

matched family image

image

TIFF Samples

Sample TIFF images in different aspect ratios and themes with high-quality uncompressed format

matched family image

image

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FAQ

What does PDF Compress Optimize do?

PDF Compress Optimize helps you compress PDF files content online without setting up a separate local script or app.

When should I use this tool?

Use it when you need a quick compress 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 Compress Optimize accept?

PDF Compress Optimize accepts Source PDF File, Compression Profile, Image DPI Override, Linearize for Web and supports file uploads for 1 field.

Is there an API for PDF Compress Optimize?

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-compress-optimize

Request Parameters

Parameter Name	Type	Required	Description
sourceFile	file (Upload required)	Yes	-
quality	select	No	-
imageDpi	number	No	-
linearize	checkbox	No	-

File type parameters need to be uploaded first via POST /upload/pdf-compress-optimize 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-compress-optimize": {
      "name": "pdf-compress-optimize",
      "description": "Smart PDF optimization: image downsampling, redundant object cleanup, stream compression",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=pdf-compress-optimize",
      "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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