PDF Compress
Free online tool to compress PDF files and reduce their size
Basic and strong modes, no signup needed
Free online tool to compress
PDF files and reduce their size
Basic and strong modes, no signup
Drop your PDF file here
or
Max file size: 100MB
Compress PDF to a smaller size
Preserve quality, no loss
Free online compression
Much smaller files
Smart compression removes what your file doesn't need, not what it does.
Privacy by default
Encrypted in transit and handled securely.
Done in seconds
No installs, no plugins. Drop a file in and it's compressed before the kettle boils.
Quality preserved
Text stays sharp and layout stays intact, only the fat gets trimmed.
Any device, any OS
Works on any device - no installs, no plugins.
100% free
No limits, no watermarks, completely free to use forever.
How it works
1
Upload your PDF by dragging it in or choosing from your device.
2
Pick a mode: Basic for everyday, Strong for max savings.
3
We compress it in the cloud, usually in under ten seconds.
4
Download the result or grab a shareable link.
PDF Compress FAQs
Basic mode gives a moderate size reduction, while Strong mode reduces the size much further. Results depend on the file: image-heavy documents shrink the most in Strong mode, while text-heavy files retain more detail in Basic mode.
Basic mode preserves all images at original quality. Strong mode may slightly reduce image resolution to achieve smaller file sizes, but everything remains perfectly readable and print-ready.
You can upload PDFs up to 100 MB. For larger files, use our Split PDF tool to divide the document first, then compress each part.
Basic mode is ideal for everyday use where text and layout stay completely intact. Choose Strong mode when you need the smallest possible file size, such as for email attachments or upload portals.
Yes. Both Basic and Strong modes preserve bookmarks, table of contents, and document structure. Only redundant embedded data is removed during compression.
There is no daily limit. Compress as many PDFs as you need, completely free with no signup required. Process multiple files in sequence without restrictions.
Your files are encrypted in transit and handled securely. We never store your documents permanently.
Compress
Compress PDF
AI PDF
AI PDF Summarizer