PDF Compressor
Reduce PDF file size with three compression presets and advanced image quality controls — all processing in your browser.
Upload PDF to Compress
Drag & drop a PDF here, or browse
Supports any PDF file. Processing happens in your browser.
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Everything you need to know
Reduce PDF Size Without Losing Quality
This free PDF compressor reduces your file size by optimizing internal structure and image quality. Choose from three presets — Maximum Compression, Balanced, or High Quality — or fine-tune settings with the advanced controls.
Compression Presets
- Maximum Compression — Smallest file size. Reduces image quality to 30% and limits image dimensions to 1200px. Best for email attachments.
- Balanced — Good balance of size and quality. 60% image quality with 2000px max dimensions.
- High Quality — Preserves visual quality at 85% with 3000px max dimensions. Ideal for printing.
Advanced Controls
Override the presets with manual controls: adjust the image quality slider from 10% to 100%, and set the maximum image dimension. These give you precise control over the compression–quality trade-off.
100% Private
Your PDFs are processed entirely in the browser using the pdf-lib library. Nothing is uploaded to any server. This tool is safe for confidential documents, legal files, and sensitive business materials.
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