Compress PDF

Reduce PDF file size instantly — 100% private, no uploads

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Drop PDF file here or click to browse

Single PDF file

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About This Tool

The Compress PDF tool reduces PDF file size by optimizing the internal structure — removing redundant metadata and unused objects — all in your browser. No files are uploaded to any server, keeping your documents 100% private.

How to Use

  1. Select a PDF file to compress.
  2. Click Compress PDF — optimization happens automatically in your browser.
  3. Download the compressed PDF file.
  4. All processing is 100% private and local — no files are uploaded.

Why Choose OmniTools?

? Instant Results

Zero server lag. All conversions run locally on your device for maximum speed.

??? 100% Private

Your files never leave your device. No uploads, no servers, no tracking.

Frequently Asked Questions

How does compression work?

PDF-lib optimizes the internal structure, removing redundant metadata and unused objects. This reduces file size without affecting visual quality.

Will the quality change?

No. This is structural optimization — visual quality is never affected. Text, images, and layout remain identical.

Can I compress multiple PDFs?

Currently processes one PDF at a time. For batch compression, process each file separately.

Are files uploaded to your servers?

No. All compression happens locally in your browser using PDF-lib. Your files never leave your device.

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