Tools

PDF Compressor

Reduce PDF file size while maintaining quality with our free online PDF compression tool.

Tools/PDF Compressor

Select PDF File

đŸ—œī¸
Select a PDF file to compress
Lossless clean-up: smaller file, same quality

Compression Info

💡 Tips

  • Remove metadata to save space
  • Lossless: text, fonts and images are untouched
  • Processing is done in your browser
  • Original file remains unchanged

✨ Features

  • Metadata removal option
  • Lossless structure clean-up
  • Real-time size preview
  • Client-side processing

â„šī¸ How to Use

  1. Select a PDF file to compress
  2. Choose optimization options
  3. Enter output filename
  4. Click compress to download result

Frequently Asked Questions

How does PDF compression work?

Lossless Optimization: Our tool removes unnecessary data, unused objects, and optimizes the PDF structure without affecting visual quality.

Metadata Removal: Removes document properties, author information, and keywords that aren't needed for viewing.

Object Cleanup: Removes unused PDF objects and optimizes the internal structure for smaller file size.

Will compression affect PDF quality?

Lossless: The tool rewrites the PDF structure only — images, text and fonts are kept exactly as they are.

Text Preservation: Text content and fonts are preserved without any quality loss.

Non-destructive: The original PDF file remains unchanged. You can always go back to the original if needed.

What file size reduction can I expect?

Depends on the file: PDFs exported by older or basic tools (with unused objects and no object streams) shrink the most; the tool shows the exact before/after size.

Already optimised PDFs: If the result would not be smaller, the tool tells you and keeps your original file — you never get a bigger file.

Image-heavy PDFs: Embedded images are not recompressed yet, so scanned or photo PDFs may shrink only a little.

Large Files: Larger PDFs typically achieve better compression ratios than smaller, already optimized files.

Is my PDF data secure during compression?

Local Processing: All compression is done directly in your browser. Your PDF files never leave your computer.

No File Upload: Files are not uploaded to any server. Processing happens entirely on your device.

Complete Privacy: Your sensitive documents remain completely private and secure throughout the process.

Temporary Processing: Files are only held in browser memory during compression and are automatically cleared when done.

What types of PDFs work best for compression?

Scanned Documents: PDFs created from scanned images typically achieve the highest compression ratios.

Presentations: PDFs with slides, charts, and graphics often compress very well.

Mixed Content: Documents combining text, images, and graphics benefit significantly from compression.

Pre-optimized Files: Some PDFs are already optimized and may show minimal size reduction.