About compressing PDF files
Compressing a PDF reduces its file size so it is easier to email, upload or store. This is especially useful for scanned documents and image-heavy files that exceed attachment limits. The tool optimises the PDF in your browser without sending it anywhere.
Tips
- Image-heavy and scanned PDFs shrink the most.
- Keep your original if you need the maximum possible quality.
- Compression runs locally, so even sensitive files stay private.