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PDF Tools

Compress PDF

Reduce PDF file sizes while keeping text and document structure intact. Choose a compression level, optionally remove metadata, and process everything locally in your browser.

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About Compress PDF

Compress PDF helps reduce the size of PDF documents without requiring you to upload them to a remote server. Smaller PDFs are easier to email, upload to websites, and store.

The tool processes the document locally in your browser using client-side JavaScript. Your PDF stays on your device while you configure the compression level and optional metadata removal.

Choose the Right Compression Level

Low

Use Low when preserving the safest possible output is more important than maximizing file-size reduction.

Medium

A balanced option for everyday PDFs, email attachments, and general document sharing.

High

Use High when reducing the file size is the primary goal and you want more aggressive optimization.

Strip Metadata

Remove document metadata such as author, creator, producer, title, subject, and keywords before downloading.

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Who Should Use This

This tool is useful for:

  • Students reducing assignment and report files before submitting them.
  • Businesses preparing smaller documents for email and online forms.
  • Developers optimizing PDF assets and generated documentation.
  • Freelancers reducing client deliverables before sharing them.
  • Anyone who needs a smaller PDF without sending the document to an external server.

Privacy First

Compress PDF uses a client-side workflow. Your document is processed inside your browser instead of being uploaded to a compression service. This makes the tool suitable for documents that you prefer to keep on your own device.

How to Compress a PDF

  1. Add your PDF. Drop your PDF into the upload area or browse for it on your device.
  2. Choose compression. Select Low, Medium, or High depending on the balance you want between optimization and output quality.
  3. Remove metadata. Optionally keep Strip File Metadata enabled to remove hidden author, creator, and software information.
  4. Compress. Tap Compress PDF to optimize the document locally in your browser.
  5. Download. Check the compression result and download the optimized PDF.

Frequently Asked Questions

Yes, Compress PDF is completely free with no daily limits, premium tiers, or account required. Like every Neuctra Tools utility, you can compress as many PDF files as you need at no cost.
No, your files never leave your device. Compress PDF processes everything locally inside your browser using client-side JavaScript, so nothing is uploaded, stored, or seen by anyone else.
Strip Metadata removes hidden document properties such as the author name, creation software, and other document metadata that PDFs store internally.
No, Compress PDF optimizes the document's internal structure rather than rasterizing pages. Your text stays sharp and fully selectable after compression.
Choose Low if file size barely matters and you want the safest output, Medium for everyday sharing and email attachments, or High when you need more aggressive optimization.