Compress a PDF client-side. This tool renders pages and rebuilds a new PDF using compressed JPEG images — great for reducing size of image-heavy PDFs. Nothing is uploaded to a server.
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Notes & limits
Best for PDFs where pages are primarily images (presentations, scans). For text-only PDFs this approach may increase size.
Scanned PDFs (already images) compress well; native PDFs with vector content may lose fidelity when rasterized.
Large PDFs and high scales can be memory-intensive.
How to Use the PDF Size Compressor
Click the "Upload PDF" button and select your PDF file.
Wait for the file to load in your browser.
Click the "Compress" button to reduce the PDF file size.
Download the compressed PDF once the process is complete.
All compression is done directly in your browser, ensuring privacy and fast processing.
Frequently Asked Questions
What is a PDF size compressor?
A PDF size compressor reduces the file size of PDF documents while keeping the content intact.
Is this PDF compressor free?
Yes, the Bookexo PDF Size Compressor is completely free to use.
Do I need to upload my PDF to a server?
No. Compression is done in your browser. Your files are never uploaded.
Will the quality of my PDF be affected?
The tool compresses files efficiently to reduce size while maintaining good quality.