Powerful PDF Compression

Compress PDF Files Online

Reduce the size of your PDF files quickly and easily, while maintaining the best possible quality. Your files are processed securely in your browser.

Drag & Drop PDF Here

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How to Compress a PDF

A simple 3-step process to reduce your PDF file size.

1. Select Your PDF

Click the "Browse File" button or drag and drop your PDF file into the upload area. Your file is processed locally and never leaves your computer.

2. Choose Quality

Select a compression level. "Low" is recommended for the best balance of size and quality. "High" provides maximum compression.

3. Download

Click "Compress PDF" and wait a few moments. Once finished, download your new, smaller PDF file instantly.

Why Use Our PDF Compressor?

Enjoy professional-grade compression with unmatched privacy and speed.

100% Private & Secure

All compression happens in your browser. Your files are never uploaded, ensuring your data remains completely private on your device.

Fast & Free

Experience instant, in-browser compression with no file size limits or hidden costs. It's completely free, forever.

Smart Compression

Our intelligent algorithm reduces file size significantly while preserving the best possible image and text quality for your documents.

Frequently Asked Questions

Is it safe to use this PDF compressor?

Absolutely. Your security is our top priority. This tool processes your files directly in your web browser. This means your PDF never gets uploaded to any server, so your data remains 100% private and secure on your own device.

Will compressing the PDF reduce its quality?

Some quality reduction is unavoidable to make the file smaller. However, our "Low Compression" setting is optimized to provide a great balance, significantly reducing file size with minimal noticeable loss in quality. For text-based documents, the quality change is often imperceptible.

Can I compress a password-protected PDF?

No, you must first remove the password protection before you can compress the file. You can use our free Unlock PDF tool to remove the password, and then return here to compress it.