Compress PDFs in Your Browser. Keep Confidential Files Safe.
Reduce PDF file size directly in your browser. No installation, completely free.
Your files are never uploaded to any server – safe for confidential documents.
Note
- Password-protected PDFs cannot be processed.
- PDFs with embedded fonts may have lower compression rates.
Drag & drop PDFs here
or click to select files
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Why Choose This Tool?
100% Private
Your PDFs are never uploaded to any server. All processing happens in your browser, so confidential documents stay safe.
Real-time Size Comparison
Instantly see file sizes before and after compression, along with the reduction percentage.
Email Attachment Ready
Quickly compress PDFs that exceed email size limits (10MB, 25MB). Also works for cloud upload restrictions.
How to Use
- Choose compression level
Select from "High Compression," "Balanced," or "Light Compression." Use high for email attachments, light to preserve quality. - Add PDF files
Drag and drop PDF files or click to select. Batch compression of multiple files is supported. - Compress and download
Click "Start Compression" to begin. Download files individually or as a ZIP archive.
Frequently Asked Questions
Are my PDFs uploaded to a server?
No. All processing happens in your browser using JavaScript. Your PDF data is never sent to any server.
Can I compress password-protected PDFs?
Unfortunately, password-protected PDFs cannot be processed. Please remove the password before compressing.
What is the maximum file size?
There is no hard limit, but it depends on your device's memory. Most PCs can handle files up to about 100MB. Very large files may be slow.
Does compression change the PDF content?
Text and layout are preserved. Compression works by re-encoding embedded images and removing unnecessary metadata. "Light Compression" keeps image quality nearly unchanged.
Why is my text-only PDF barely compressed?
This tool primarily reduces file size by re-encoding embedded images. PDFs with only text and vector graphics are already small and may not compress much further.
Is it free?
Yes, all features are completely free. No registration or usage limits.