About PDF Compress
PDF compressor reduces PDF file size online, optimizes image quality, removes redundant data. Fully local processing, no upload, compressed files easier to share and store.
How to Use
- Upload PDF file
- Choose compression level (low/medium/high)
- Wait for compression to complete
- Download compressed PDF
Frequently Asked Questions
- Does compression lose content?
- No text or vector graphics lost. Compression mainly reduces embedded image quality, removes duplicate objects. High compression causes slight image blur, text always sharp.
- Why is my PDF compression ineffective?
- Text-only PDFs have limited compression space. Best results with image-heavy PDFs (e.g., scans). Already-compressed PDFs have little improvement.
- File size limit for compression?
- Browser processing typically limited to 50MB. For huge PDFs, suggest desktop software (Adobe Acrobat) or batch processing.