Compress PDF

Reduce your PDF file size while maintaining quality. Works 100% in your browser — nothing uploaded!

Upload PDF to Compress

Drop your PDF file here or click to browse

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Files never leave your device!

How to Compress PDF

3 simple steps — done in seconds

Upload PDF

Select the PDF file you want to compress from your device.

Choose Level

Pick compression level: Low, Medium or Maximum.

Download

Download your smaller, optimized PDF instantly.

Frequently Asked Questions

Everything you need to know about PDF compression

1

Does compression reduce PDF quality?

Our compression renders each page and re-encodes images at optimized quality. With Low compression, quality difference is barely visible. Maximum compression may show slight quality reduction on very detailed images — ideal for email/web sharing.

2

How much can file size be reduced?

Typically 20–70% reduction depending on the PDF content and chosen level. PDFs with lots of metadata, duplicate objects and unoptimized structure compress the most.

3

Are my files secure and private?

100% secure! All processing happens locally in your browser. Your files are never uploaded to any server — complete privacy guaranteed.

4

Can I compress password-protected PDFs?

We attempt to process protected PDFs, but some heavily encrypted files may not be compressible without the password. Try removing the password first using our Unlock PDF tool.

5

Which compression level should I choose?

Medium is recommended for most use cases — great balance between file size reduction and quality. Use Low for print-quality documents and Maximum for emails or web sharing.