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Compress PDF
Reduce PDF file size while keeping quality
What is PDF Compression?
PDF Compression reduces the file size of your PDF documents without losing important content. Think of it like packing a suitcase more efficiently - everything still fits, but it takes up less space. This makes your files easier to email, upload, and store.
Why Would You Need to Compress a PDF?
Large PDF files can be frustrating to work with. Here are common situations where compression helps:
- Email attachments: Most email providers limit attachments to 25MB. Compress your PDF to send it without issues
- Website uploads: Smaller files upload faster and don't eat up your hosting storage
- Cloud storage: Save space on Google Drive, Dropbox, or iCloud by compressing documents
- Slow internet: Compressed files download and upload much faster on slow connections
- Mobile sharing: Smaller files are easier to share via WhatsApp, Telegram, or other messaging apps
How to Compress a PDF - Step by Step
- Choose your compression level: Pick from three options:
- Low Compression - Best quality, smaller size reduction. Great for documents you'll print
- Medium Compression - Balanced quality and size. Perfect for most everyday use
- High Compression - Smallest file size, lower quality. Ideal for email or quick sharing
- Upload your PDF: Click the upload button or drag and drop your file into the box
- Wait for compression: Our tool will process your file in just a few seconds
- Check the results: You'll see exactly how much space you saved - often 50-80% smaller!
- Download: Click the download button to save your compressed PDF
Understanding Compression Levels
| Level | Best For | Size Reduction | Quality |
|---|---|---|---|
| Low Compression | Printing, professional documents | 20-40% | Excellent |
| Medium Compression | General use, sharing online | 40-60% | Good |
| High Compression | Email, quick sharing, archiving | 60-80% | Acceptable |
Tips for Best Results
- Start with Medium compression - it works great for most files
- If your PDF has lots of images, you'll see bigger size reductions
- Text-only PDFs are already small, so compression may not help much
- If the compressed file looks blurry, try again with Low compression
- Always keep a copy of your original file, just in case
Frequently Asked Questions
Will compression damage my PDF?
No, your original file stays untouched. We create a new compressed copy. The text remains perfectly readable - only images may be slightly reduced in quality at higher compression levels.
How much smaller will my file be?
It depends on your PDF content. Files with many images can shrink by 50-80%. Text-heavy documents may only reduce by 10-20%. The tool shows you exactly how much you saved after compression.
Is there a file size limit?
You can compress PDFs up to 50MB. For larger files, try splitting them first using our Split PDF tool, then compress each part.
Can I compress password-protected PDFs?
You'll need to remove the password first. Use our PDF Unlock tool, compress the file, then add password protection again if needed.
Why is my compressed file the same size?
Some PDFs are already optimized or contain mainly text. In these cases, there's not much to compress. Our tool will let you know if the file was already optimized.