Compress PDF
Compress PDF files online for free. Reduce file size up to 90% with minimal quality loss. Fast and secure PDF compression.
Frequently Asked Questions
- How much can I reduce my PDF?
- You can typically reduce file size by 50-90% depending on content. PDFs with many images compress best.
- Will I lose quality when compressing?
- Text and vector graphics stay sharp — only images are recompressed, which can cause minor quality loss that is rarely visible at normal viewing. Choose the compression level to suit your needs.
- Is it free to compress PDF?
- Yes, PDF.dk offers free PDF compression. Free users can upload up to 20 files per month.
How to
- Upload your PDF file by dragging it to the upload area or clicking "Choose file"
- Select compression level: Low, Medium or High compression
- Click "Compress" and wait while the file is processed
- Download your compressed PDF file