Free PDF Compressor | Reduce PDF File Size Online

Reduce PDF file size without losing the feel and experience. Adjust quality, resolution, and more.

Drop your PDF here or click to browse

Supports any PDF file

Your files never leave your browser. All compression is done client-side using JavaScript — no server uploads, no data collection.

Common Use Cases for PDF Compress

Email Attachment: Reduce PDF file size to meet email attachment limits while maintaining acceptable quality.
Website Upload: Compress PDFs before uploading to websites to improve page load times and user experience.
Storage Optimization: Shrink archive PDFs to free up cloud storage or disk space without losing important content.
Mobile Sharing: Reduce file size for faster sharing via messaging apps or limited data connections.
Batch Optimization: Compress multiple PDFs to optimize document libraries or client file portals.
Bandwidth Saving: Minimize file transfer sizes for faster downloads and reduced bandwidth consumption.

Drag-and-drop or click to select the PDF you want to compress.

Pick a preset or fine-tune quality, resolution, grayscale, and metadata options.

Compress and download the optimized PDF instantly — all in your browser.

Explore these complementary tools to enhance your productivity

Merge compressed files

Merge multiple PDF files into a single document. Drag-and-drop to reorder.

Protect compressed PDF

Password protect any PDF — encrypt and set permissions, entirely in your browser.

Split large PDFs before compressing

Split a PDF into multiple files by page ranges, every N pages, or extract individual pages.

Check compression results

Open and view PDF files in your browser. Inspect metadata and document properties.