Compress PDF
Reduce PDF file size while maintaining quality. Perfect for email attachments and web uploads.
Upload PDF File
Select a PDF file to compress
Choose PDF file
Reduce file size for easier sharing
Compression Levels
Low: Best quality, larger file size. Good for documents with text.
Medium: Balanced quality and size. Recommended for most users.
High: Smallest file size, lower image quality. Best for sharing drafts.
Features
- • Multiple compression levels
- • Custom quality settings
- • Visual progress indicator
- • Secure client-side processing
- • No file size limits
Why Compress PDF Files?
Large PDF files can be difficult to share via email, upload to websites, or store on your device. Compressing your PDFs reduces their file size while maintaining acceptable quality, making them easier to handle and share.
Our tool is perfect for:
- Reducing file size for email attachments
- Optimizing PDFs for web uploads
- Saving storage space on your device
- Faster file transfers
Fast & Free
Compress PDFs instantly in your browser. No waiting for uploads or downloads.
Secure
Files are processed locally. Your sensitive documents never leave your device.
Mobile Friendly
Works perfectly on smartphones and tablets. Compress PDFs on the go.
No Limits
Compress as many files as you want. No daily limits or restrictions.
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View All ToolsFrequently Asked Questions
Everything you need to know about using our Compress PDF tool effectively
How does the PDF compression work?
Our tool compresses PDFs by optimizing the images within the document. It converts pages to high-quality images and re-assembles them into a new, smaller PDF file. This is most effective for PDFs containing many images or scanned documents.
Will I lose quality?
You can choose your compression level. 'Low' compression maintains high quality with less size reduction. 'High' compression significantly reduces file size but may slightly reduce image clarity. 'Medium' offers a balanced approach.
Is my data secure?
Yes! All compression happens locally in your browser. Your files are never uploaded to our servers, ensuring 100% privacy and security.
Can I compress password-protected PDFs?
You'll need to unlock the PDF first before compressing it. You can use our Unlock PDF tool to remove the password, then compress the file.
Is there a file size limit?
Since processing happens in your browser, the limit depends on your device's memory. Most standard PDF files (up to 100MB) can be processed easily on modern devices.