PDF Compressor
Free online PDF compressor that reduces the file size of your PDF documents. Choose from Low, Medium, or High compression presets. All processing happens in your browser using pdf-lib.
PDF Compressor
Drop PDF files here
or click to browse — multiple files supported
Guide
How to Use
- 1
Drop one or more PDF files onto the upload zone
- 2
Select compression level (Low/Medium/High)
- 3
Click Compress All
- 4
Download individual files or use Download ZIP for all
FAQ
Frequently Asked Questions
How much can PDF files be compressed?
Compression varies by PDF content. Text-heavy PDFs compress less, while image-heavy PDFs can achieve 40-60% reduction.
Is my PDF data secure?
Yes. Your PDF is processed entirely in your browser and never uploaded to any server.
Can I compress multiple PDFs at once?
Yes. Drop as many PDF files as you need and click Compress All. Once done, download them individually or as a single ZIP archive.