Why did my PDF not get smaller?
Some PDFs are already compressed, mostly text, or use optimized images. Stronger compression can reduce image quality and may make text no longer selectable.
Compress PDF Online Free
Reduce PDF size in your browser with compact saving and stronger image-based compression.
Drag & drop files here
or
Browse FilesSupports PDF files · Max 50MB per file
i
Free tools, supported by ads
Toolzee keeps its core tools free through clearly labeled ads. The tools are designed to run directly in your browser whenever possible.
How to compress a PDF
Upload a PDF and Toolzee will try compact PDF saving first, then a stronger browser-based compression that redraws pages as JPEG images when it creates a smaller file.
Frequently Asked Questions
Is the compression private?
Yes. The optimization runs in your browser and does not require an account.
Understand the tradeoffs before you compress a PDF
If your goal is easier sharing instead of chasing the tiniest possible file, this guide explains how to think about compression and its practical limits.