PDF Compressor
Reduce PDF file size. Free, no signup, no upload.
How It Works
Select a PDF file and click Compress. The PDF is re-serialized using pdf-lib, which removes unused objects, cleans up the cross-reference table, and optimizes the internal structure. The result is often 10-40% smaller. No file is ever uploaded to a server.
Why Compress PDFs?
Smaller PDFs are faster to upload, email, and download. Many platforms have file size limits for attachments. Compressing removes bloat from PDF editors, form data, metadata, and unused embedded resources.