Compress PDF

Reduce PDF file size for free. No upload required — all processing happens in your browser.

Your files never leave your device. All processing happens in your browser. We don't upload, store, or access your files.

Drop your PDF here or click to browse

PDF files — no size limit

How to Use

  1. 1Drop your PDF file into the upload area above or click to browse
  2. 2Wait for processing — your file is compressed entirely in your browser
  3. 3Review the original and compressed file sizes
  4. 4Click "Download" to save the compressed PDF

About This Tool

Our PDF compressor removes unused objects and metadata from your PDF file to reduce its size. The process is entirely lossless — your content, formatting, and images remain unchanged. Processing happens 100% in your browser, so your files never leave your device.

Frequently Asked Questions

How does PDF compression work?

Our compressor creates a clean copy of your PDF, removing unused objects, metadata, and redundant data. This reduces file size without affecting visible content. The entire process happens in your browser — your file is never uploaded to any server.

Does compressing a PDF reduce quality?

No. Our compression method is lossless, meaning all text, images, and formatting remain exactly the same. We reduce file size by stripping metadata and unused internal objects, not by degrading image quality.

Is there a file size limit?

No. Since processing happens entirely in your browser, there are no server-imposed file size limits. However, very large files (over 100 MB) may take longer to process and use more browser memory.

How do I make a PDF smaller for email?

Drop your PDF into the compressor above, wait for processing to complete, then download the compressed file. The result is typically 10-30% smaller, which can make the difference between fitting within email attachment limits.