Compress PDF Online
Reduce PDF file sizes for seamless email attachments and portal uploads without losing document legibility.
How to Use Compress PDF Online
- Drag and drop your heavy PDF file.
- Select your compression preset: Extreme (smallest size), Recommended (balanced), or Low (maximum crispness).
- Click 'Compress PDF'.
- Compare original vs. new file size and download your optimized document.
Working Principles & Technical Details
PDF compression optimizes embedded raster images, strips redundant metadata dictionaries, removes unused fonts and duplicate XObjects, and recompresses structural streams using Deflate algorithms.
Supported Formats
Input: Standard .pdf file. Output: Optimized .pdf file.
Usage Limits & Specifications
PDFs already consisting of highly compressed vector text may yield minimal file size reduction compared to scanned image-heavy PDFs.
Data Privacy & Security
Zero server uploads. Your confidential resumes, tax documents, and IDs stay secure on your local device. To read more about our strict privacy practices, review our complete Privacy Policy.
Frequently Asked Questions
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