ToolboxHub

📦PDF Compressor

Compress PDF files to reduce file size while keeping quality.

Share:

Drag & drop a PDF here

or click to browse

Balanced — good quality with meaningful size reduction.

Estimated size reduction30–50%

Note: actual compression requires Ghostscript or pdf-lib on the server.

About PDF Compressor

The PDF Compressor reduces your PDF file size by optimizing embedded images, removing redundant data, and applying efficient compression — all without sacrificing readability. It runs entirely in your browser, so your sensitive documents stay on your device throughout the process.

How to Use PDF Compressor

  1. 1

    Upload your PDF

    Drag and drop your PDF file or click to browse and select it from your device.

  2. 2

    Choose a compression level

    Select your preferred compression level — low (best quality), balanced, or maximum (smallest file size).

  3. 3

    Download the compressed PDF

    Click 'Compress' and download the optimized PDF. The tool displays the original and new file sizes so you can see exactly how much was saved.

Common Use Cases

  • Reducing large PDF attachments to fit within email size limits
  • Optimizing PDFs for faster loading on websites and online portals
  • Shrinking scanned document PDFs before uploading to cloud storage
  • Making large presentation PDFs easier to share with clients

Frequently Asked Questions

How much can PDF compression reduce file size?
Compression savings vary by content — PDFs with many high-resolution photos can be reduced by 50–80%, while text-heavy PDFs with few images may see more modest reductions of 10–30%.
Will compression make text or images blurry?
The tool offers multiple compression levels. The 'balanced' setting reduces size significantly while keeping text sharp and images visually acceptable. The 'maximum' setting achieves the smallest file size but may reduce image quality.
Is there a file size limit?
The compressor handles PDFs up to 100 MB. For very large files, the processing may take a few seconds longer as everything runs locally in your browser.

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