Compress PDF files
Reduce file size while optimizing for maximal PDF quality.
Uploaded Files
1 fileCompressing PDF...
Reducing file size while optimizing visual quality...
PDFs have been compressed!
Your files are ready for immediate download.
Download Borngreat PDF for Desktop
Work completely offline with unlimited file size, faster local processing, and 100% private document security.
Windows 64-bit
x64 / AMD64For Windows 11, 10, 8 (64-bit systems)
- Full native 64-bit multi-core processing
- Standalone executable & portable bundle
- 100% offline, zero internet required
Windows 32-bit
ia32 / x86For older 32-bit Windows 10, 8, 7 systems
- Compatible with legacy 32-bit PCs
- Standalone native window runtime
- Lightweight, zero system bloat
macOS App
UniversalFor macOS 11.0 Big Sur through macOS 15 Sequoia
- Apple Silicon M1/M2/M3/M4 & Intel
- Universal application bundle
- Instant launch, zero configuration
Why use Borngreat PDF on Desktop?
Engineered for high-volume professionals who need offline reliability, unlimited file sizes, and absolute privacy.
100% Offline Capability
Compress sensitive documents anywhere — on flights, secure facilities, or off-grid without an active internet connection.
Zero File Size Limits
Bypass browser memory constraints. Process huge multi-hundred-megabyte scans, books, and portfolios effortlessly.
Native Hardware Acceleration
Leverages direct multi-threading for instantaneous PDF stream packing and adaptive DCT quantization.
Absolute Local Privacy
Your documents reside strictly on your own physical drive. No third party, telemetry, or cloud upload.
Compression History & Analytics
All your past document optimizations and visits recorded securely in a local SQLite database.
| File Name | Original Size | Compressed | Savings | Level / Engine | Date & Time |
|---|
How to compress PDF online with Borngreat
Compress your PDF documents in 3 simple steps without installing any software.
Upload your PDF
Select your PDF from your device or simply drag and drop it into the upload box.
Choose compression level
Pick between Extreme, Recommended, or Less compression based on your quality needs.
Download compressed file
Your optimized PDF is generated instantly in memory. Download it with one click!
Why choose Borngreat PDF Compressor?
Engineered for lightning speed, unmatched privacy, and maximum file size reduction.
100% In-Browser Privacy
Unlike cloud converters that upload your confidential documents to unknown servers, Borngreat processes everything locally in your browser.
Instant Optimization
Powered by modern WebAssembly and JavaScript vector engines. No waiting in server queues or uploading gigabytes of data.
Exceptional Compression
Smart discrete cosine quantization and stream compaction drops file sizes by up to 90% while keeping text crisp and sharp.
Zero Limits, 100% Free
No account required, no subscription paywalls, no watermarks, and no file quantity caps. Compress as many PDFs as you need.
Frequently Asked Questions
Everything you need to know about Borngreat PDF Compressor.
No. Borngreat utilizes high-resolution rasterization and vector stream re-encoding. Standard typography and fonts maintain sharp, legible contours even at high compression ratios.
Absolutely. Borngreat operates 100% client-side inside your browser sandbox. Your PDF never leaves your device or touches any external server or cloud storage.
Open the "Advanced Optimization Options" panel and toggle "Target file size limit". Select "Under 500 KB" or type your exact limit in KB. The engine will dynamically compute the optimal compression parameters to match your limit.
Yes! Borngreat supports multi-file batch uploads. You can drop multiple PDFs together and compress them all with your selected profile.