Compress PDF

Compress PDF files directly in your browser. Choose Extreme, Recommended, or Low compression levels.

Private • In-browser processing • Zero server uploads

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How to Use Compress PDF

1
Select File
Click or drop your Compress PDF file into the workspace.
2
Configure Options
Review settings and the "What to expect" guidance notes.
3
Convert & Download
Process and download your converted file locally.

Key Features

100% Client-Side
Files processed entirely in your web browser.
Zero Uploads
Your sensitive data never touches any remote server.
Fast & Free
Instant download with no sign-up or queue.

Common Use Cases

  • Processing sensitive contracts and documents privately in the browser.
  • Converting office and document archives without installing desktop software.
  • Preparing files for sharing, distribution, or editing.

Frequently Asked Questions

No. All processing happens entirely inside your web browser on your own computer or phone using modern browser APIs. No files are ever sent to an external server.

Compression optimizes internal PDF object streams and strips unnecessary document metadata. Files containing high-resolution uncompressed images see the greatest reduction. If the input is already heavily compressed, the tool preserves your original file without degrading quality.

Processing is performed directly in your browser memory. For optimal performance, files under 100 MB are recommended.

Merge PDF
Combine multiple PDF files into one document. Drag to reorder pages before merging.
Flatten PDF
Flatten form fields and annotations into static content for universal compatibility.
Repair PDF
Fix corrupted or damaged PDF files and recover as much content as possible.
Watermark PDF
Add a text or image watermark to every page of a PDF with custom opacity.
Split PDF
Split a PDF into multiple files by page range, every N pages, or individual pages.