How to Use
- 1
Upload your PDF file by clicking the upload area or dragging it in.
- 2
Select a compression level: Screen (smallest size), eBook (balanced), or Printer (higher quality).
- 3
Click Compress and download the optimized PDF. Original and compressed sizes are shown.
Frequently Asked Questions
How much can PDF compression reduce file size? ▼
Results vary widely. PDFs with large embedded images can see significant reductions. PDFs that are already optimized may show minimal savings. The tool strips metadata and optimizes object streams.
Is my PDF uploaded to a server? ▼
No. Compression runs entirely in your browser using pdf-lib. Your file never leaves your device.
Will compression affect PDF quality? ▼
Metadata stripping has no visual impact. The compression mainly targets file structure efficiency. For aggressive image compression in PDFs, a server-side tool may produce better results.