Free Online Tool
Compress PDF Online Free
Reduce your PDF file size without compromising quality. Fast, private, and no account required.
Upload documents
Drag & drop or
PDF, Word, PowerPoint, images·Max 100 MB per file
No account required · Files deleted after 24 hours · Secure encrypted upload
How it works
Upload your PDF
Select or drag the PDF you want to reduce in size into the upload zone.
Choose quality level
Pick Screen, eBook, Printer, or Prepress to balance file size and quality.
Download compressed PDF
See the before and after file sizes, then download your smaller PDF instantly.
Frequently Asked Questions
- How do I compress a PDF without losing quality?
- Upload your PDF and choose the "Printer" or "Prepress" quality level to keep high visual fidelity while still reducing file size. For maximum compression, choose "Screen".
- How much can the file size be reduced?
- Typical reduction is 40-80% depending on the content. PDFs with large images see the biggest savings. Text-heavy documents are already compact.
- Can I compress a PDF for email?
- Yes. Use the "Screen" or "eBook" setting to get the smallest file size, ideal for email attachments under 10 MB.
- Is the compression quality adjustable?
- Yes. Four levels are available: Screen (smallest), eBook (good balance), Printer (high quality), and Prepress (maximum quality, least compression).
- Is my PDF kept private?
- Yes. Your file is uploaded over an encrypted connection and automatically deleted from our servers after 24 hours.