PDF / OPTIMIZE PDF LOSSLESSLY
A little less overhead.
Recompress PDF streams and optimize the file structure without rasterizing pages.
60 MB total · up to 20 images or 10 PDFs · 300 PDF pages. Rendering/export: up to 80 pages.
Preview is for placement. Inspect the downloaded file before sharing.
Your originals stay untouched.
THREE SIMPLE STEPS
How to use Optimize PDF losslessly
- Choose a PDF from your device.
- Review the settings and process locally.
- Download and inspect your copy.
GOOD TO KNOW
Structural optimization can reduce overhead but may leave the file the same size or larger. It does not reduce image resolution. Modifications can invalidate signatures.
Up to 25 MB per file and 60 MB per batch. This limit protects browser memory, especially on phones.
A couple of useful answers.
Are my files uploaded?
No. The PDF engine runs inside your browser.
What are the limits?
Structural optimization can reduce overhead but may leave the file the same size or larger. It does not reduce image resolution. Modifications can invalidate signatures.
Are my files uploaded?
No. These tools process file contents in your browser. Files remain available in this tab until you clear them or close the page. Download a copy before leaving.