PDF Compressor
See reduce the file size of your PDF documents while maintaining visual quality.
Last updated: April 28, 2026
Upload a PDF
Drag & drop or browse
Compress Settings
Compression is performed locally. Basic level cleans the structure, while Recommended and Extreme levels optimize internal image assets.
PDF Compressor — No Uploads Required
Our PDF Compressor uses advanced optimization techniques to shrink your PDF files without sacrificing readability. By optimizing internal object structures and compressing high-resolution images, we help you meet file size limits for email attachments and web uploads. The entire process happens locally in your browser, ensuring your sensitive documents remain private and secure.
Why This Tool Exists
What makes this useful — and why I built it this way.
Optimized File Sizes: Reduce large PDF document sizes without losing text clarity.
Adjustable DPI Settings: Lower image resolution parameters to save disk space.
Batch Compression: Compress multiple files simultaneously in seconds.
When You'd Use This
Real situations where this tool saves the day.
Job Applications: Shrink portfolio PDFs to fit under company upload limits.
Emailing Documents: Compress tax and legal forms to send as small attachments.
Web Publishing: Optimize online manuals to speed up loading for visitors.
Using PDF Compressor
It's straightforward — here's how it works.
Upload the PDF document you want to compress.
Select your desired compression level (Basic, Recommended, or Extreme).
Click 'Compress PDF' to start the optimization.
Download the smaller, optimized version of your document.
Questions People Ask
Honest answers about how this works.
How much can it reduce my PDF size?
Honestly? Reduction depends on the original content. PDFs with many high-resolution images typically see the largest savings, often up to 70-80%.
Will it affect text quality?
No, our compressor focuses on image data and structural bloat. Your text remains sharp and perfectly readable.
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