Compress PDF

Reduce your PDF file size while maintaining quality. Works 100% in your browser!

Upload PDF to Compress

Drop your PDF file here or click to browse

100% Private Browser Only Free

Files never leave your device!

How to Compress PDF

Simple 3-step process

Upload PDF

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

Choose Level

Pick compression level: Low, Medium or Maximum quality.

Download

Download your smaller, optimized PDF instantly.

Frequently Asked Questions

1

Does compression reduce PDF quality?

Our compression removes unnecessary metadata and optimizes the PDF structure. With Low and Medium compression, quality loss is minimal to none. Maximum compression may slightly affect image quality.

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 — it offers a great balance between file size reduction and quality. Use Low for print-quality documents and Maximum for emails or web sharing.