Reduce PDF file size without quality loss
Edit Use Compress PDF Tool →Compress your PDF files to reduce their size while maintaining acceptable quality. Perfect for email attachments, web uploads, or saving storage space. Our compression tool optimizes your PDF internally without uploading to any server. The compression works by optimizing the internal structure of the PDF, removing unnecessary data, and applying efficient encoding. Your documents remain completely private throughout the process.
PDFToolBox Compress reduces your PDF file size without requiring server uploads. Perfect for email attachments and web forms with size limits. Our client-side optimization ensures your documents stay private while becoming easier to share. Results typically range from 10-50% size reduction depending on the PDF content.
Compression results vary depending on the PDF content. PDFs with many images typically see more reduction. Results typically range from 10-50% size reduction.
Our compression focuses on internal optimization with minimal quality impact. The output should look nearly identical to the original.
There is no hard limit, but very large files (over 100MB) may be slow to process in the browser.