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PDF Compressor

Optimize PDF structure to reduce file size without uploading sensitive documents to a server.

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Guide

Usage, privacy, and related tools

Best for

  • Removing orphaned PDF metadata
  • Preparing files for email
  • Optimizing local PDFs

Privacy

Optimization happens locally. No file contents are sent over the network.

Quick tips

  • This tool optimizes document structure but does not downsample images.
  • Test the resulting PDF to ensure all features are intact.
  • Use an image compressor first if your PDF is mostly images.

How to use this tool

  1. Select a PDF file to compress.
  2. Wait for the tool to rebuild the object structure.
  3. Download the optimized PDF.

Common questions

Will this reduce image quality?

No. This tool only reconstructs the PDF metadata and object streams without altering image pixels.

Why did my file size not change much?

If the PDF is already optimized or consists mostly of compressed images, structural optimization may yield small savings.

Related tools

PDF SplitterExtract pages or split a PDF into multiple files locallyPDF MergerMerge multiple PDF files into one. Reorder, remove, and download.Image CompressorCompress PNG, JPEG, and WebP images locally to save spacePDF Text ExtractorExtract all text content from a PDF file locally using pdf.js