About PDF Compress
Compress PDF files online in your browser with three quality levels. High quality (structure cleanup), Standard (metadata removal), and Maximum (metadata + thumbnails). Before/after size comparison. 100% client-side, no upload.
How to Use
- Open the PDF Compress tool page
- Enter or paste your data into the input area
- View the real-time results and use the copy button to get the output
Use Cases
- Email attachments — Compress PDFs before emailing to reduce attachment size and improve delivery success.
- Document archiving — Batch compress PDFs to save storage space and improve transfer efficiency.
- Web uploads — Compress PDFs to meet file size limits for website uploads.
FAQ
Does compression reduce PDF quality?
High quality mode only cleans structure without affecting content. Standard mode removes metadata (author, title, etc.) while preserving content. Maximum mode removes thumbnails but text and image quality remain unchanged.
Can I compress encrypted PDFs?
No. Password-protected PDFs must be decrypted first before compression.
Are files uploaded to a server?
No. All processing happens in your browser locally. Files never leave your device.
Comments
💬 Comments are stored locally in your browser. Configure Giscus for cloud-based comments.