Compress PDF

Reduce file size by choosing the compression method that best suits your document. Supports multiple PDFs.

Click to select files or drag and drop

One or more PDF files

Your files never leave your device.

How It Works

1

Upload your PDF

Drag and drop or click to select your PDF files.

2

Choose compression

Select your preferred quality vs size balance.

3

Download compressed

Get your smaller PDF file instantly.

Why SwiftPDFLab?

100% Client-Side

All processing happens in your browser. Files never touch our servers.

Works Offline

Once loaded, works without internet. Perfect for confidential documents.

No Account Needed

Start immediately. No sign-up, no email required.

Free Forever

No trials, no premium tiers. Every feature is completely free.

Frequently Asked Questions

Is this PDF compressor free?

Yes, completely free with no limits. No subscription or hidden fees.

Are my documents uploaded to a server?

No, all compression happens locally in your browser. Your files never leave your device.

How much can I reduce my PDF size?

Depending on the content, you can reduce file size by 50-90%. Text-heavy PDFs compress more than image-heavy ones.

Will compression affect quality?

You can choose the compression level. 'Balanced' maintains good quality while 'Extreme' prioritizes smaller size.

Explore More PDF Tools

See How We Compare