Why did my PDF not get smaller?
Some PDFs are already compressed or contain large images that cannot be reduced without changing image quality.
Compress PDF Online Free
Optimize a PDF by re-saving it with compact object streams directly in your browser.
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 re-save it with compact PDF object streams. Some image-heavy PDFs may not shrink much without reducing image quality.
Frequently Asked Questions
Is the compression private?
Yes. The optimization runs in your browser and does not require an account.