Upload your PDF
Choose the large PDF you want to shrink.
Home / Compress PDF
Compress PDF
Reduce PDF file size without opening desktop software. Pick Maximum for the smallest file, Recommended for a balanced result, or High quality when you need clearer images after compression.
- Secure, easy-to-use, no software download
- Files are automatically deleted after processing
- Works on desktop and mobile
Drop PDF here
or
Supported: PDF · Max 100 MB
Related PDF tools
How to use Compress PDF
Select a compression mode
Maximum, Recommended or High quality — start with Recommended for most files.
Download the smaller file
Compare original vs compressed size, then save the result.
Why use Compress PDF
- Three clear compression levels
- Shows size savings after processing
- Server Ghostscript when installed; browser rewrite as fallback
- Great for email attachments and upload limits
Privacy for Compress PDF
We try private browser processing when possible. If the server path is used, files are kept only long enough to finish the job and then deleted automatically.
Compress PDF FAQs
Simple answers about this tool
Will my PDF always become much smaller?
Savings depend on images and fonts. Already-optimized PDFs may shrink only a little.
Which mode should I use?
Use Recommended first. Switch to Maximum if the file is still too large for email or a website upload.
Can I compress a PDF to 1 MB?
Often yes with Maximum mode, but image-heavy scans may stay larger. See our Compress PDF to 1 MB guide.
What file types does Compress PDF accept?
This tool accepts: PDF.
Do I need to install software?
No browser plugin is required. Some advanced server tools need programs like LibreOffice, qpdf or Tesseract installed on the host machine.