Compress PDF files free online. Reduce file size in your browser — no upload needed.
This tool compresses PDF files by rewriting and optimizing them using pdf-lib. It removes redundant data and streamlines the internal structure to reduce file size while preserving all visible content, text, and images.
Results vary depending on the PDF content. Typical compression reduces file size by 10-40%. PDFs with lots of redundant metadata or structure see the biggest improvements.
This tool optimizes the PDF structure without recompressing images. Text, vectors, and layout remain identical. Image quality is preserved.
No. The tool cannot open encrypted or password-protected PDF files. Remove the password first using your PDF reader.