PDF Tools

PDF Compressor

Reduce PDF file size by compressing images and removing unnecessary metadata. Balances quality and size.

Drop your PDF here

or click to browse

How PDF Compression Works

Our PDF compression works entirely in your browser using advanced algorithms. We optimize embedded images, remove duplicate data, and streamline the PDF structure. The actual compression ratio depends on the original PDF content - PDFs with many images typically see the best results. Text-heavy documents may see smaller reductions as text is already efficient.

100% Private

Your files never leave your browser. Complete privacy.

Readable Quality

Optimized to maintain text clarity and image quality.

Instant Results

Fast compression with no server upload delays.

About PDF compression

PDFs can become large due to embedded high-resolution images, fonts, metadata, and redundant data structures. Compression reduces file size by re-encoding images at lower quality settings, removing non-essential metadata, and optimizing the internal document structure.

This tool provides different compression levels to balance file size against visual quality. Processing happens entirely in the browser for privacy.

Frequently Asked Questions

PDF compression reduces file size by optimizing images, removing duplicate objects, compressing streams, and stripping unnecessary metadata — all while preserving readability and print quality.

The default compression settings balance size reduction with quality. Text and vector graphics remain unchanged. Images may be resampled, but the difference is typically not noticeable for screen viewing.

Compression results vary depending on the content. PDFs with large images typically see 40-70% size reduction. Text-heavy PDFs with few images see smaller reductions of around 10-20%.

Related Tools

PDF Splitter

Split PDF documents by page range, every N pages, or odd/eve...

PDF Merger

Merge multiple PDF files into one document online. Reorder p...

PDF to Image Converter

Convert PDF pages to high-resolution PNG or JPG images onlin...

Image to PDF Converter Online Free

Convert JPG, PNG, WebP, and other images to PDF online. Cust...