Compress PDF
Shrink file size without visible quality loss.
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Reduce PDF file size without noticeable quality loss, making documents easier to email, upload to a portal, or share online. PDF Deck compresses images and stream data inside the PDF while keeping text and document structure intact. Files with many embedded images typically shrink by 50 to 80 percent. Your file is processed in memory and never written to any server — it is gone the moment you close the tab.
Frequently asked questions
- How much will my PDF shrink?
- Compression rates vary by content. PDFs with many images typically compress by 50 to 80 percent. Text-only PDFs compress less.
- Will compression reduce quality?
- The tool targets file size reduction with minimal visible quality loss. Images are optimized rather than removed.
- Are my files stored after processing?
- No. Files are processed in memory and deleted immediately once you download your result.