Compress PDF
Losslessly reduce PDF file size by stripping redundant metadata and orphaned resources. Savings depend on how the PDF was produced — image-heavy or already-optimized files may not shrink. Files are processed entirely in your browser.
Drop your PDF to compress
Files are processed entirely in your browser. Nothing is uploaded to any server.
About the Compress PDF tool
Reduce the size of PDF files so they fit under email attachment limits and upload caps. The tool rewrites the PDF structure and optimizes its contents.
Compression runs fully in your browser, and the result is reported honestly — you always see the real before-and-after size.
Frequently asked questions
How much smaller will my PDF get?expand_more
It depends on the content. Image-heavy and unoptimized files shrink the most; PDFs that are already optimized may barely change, and the tool will tell you so.
Will my document still be readable?expand_more
Yes — compression is tuned to reduce size while keeping the document perfectly usable.
Is my PDF uploaded to a server?expand_more
No. The whole process happens on your device, so confidential files stay confidential.