Compress PDF
Strip metadata and rewrite the file structure to make your PDF smaller. Free, private, in-browser — your files never leave this device.
Private by design: your files never leave this device. All processing happens in your browser — nothing is uploaded to any server.
Basic optimization only: this removes metadata and rewrites the file structure. It does not recompress embedded images, so scanned or image-heavy PDFs may barely shrink.
How to use this tool
- Choose a PDF file.
- Run the compression.
- Download the smaller file.
Honest limit: Basic optimization only: it does not recompress embedded images, so scanned or image-heavy PDFs may barely shrink.
Questions about this tool
Why did my PDF barely shrink?
This is basic optimization: it strips metadata and rewrites the file structure, but it does not recompress embedded images — so scanned or image-heavy PDFs may barely shrink.
Does compression change how my PDF looks?
No — it does not recompress images or rewrite page content, so the pages look the same.