About Compress PDF

Compress PDF rewrites the document with object streams and clears document metadata. It is most useful for structure-heavy PDFs; image-heavy files may not shrink much.

How to Use Compress PDF Online

Open Compress PDF and select one PDF.
Choose Low, Medium, or High compression.
Select Compress PDF and wait for the generated file.
Compare the displayed output size with the original and review the PDF before sharing it.

100% Client-Side Privacy

Files process in local browser memory via WebAssembly. Your documents are never uploaded to remote servers.

Supported Input

One PDF

Output Result

A compressed PDF download

Practical Pro-Tip

Try Low first when preserving compatibility matters.

Need Visual Step-by-Step Guidance?

Explore our complete walkthrough for Compress PDF with full interface screenshots, option reference, and troubleshooting FAQs.

Read Compress PDF Guide

Compress PDF