Online File Compressor
Shrink the size of PPTX, Keynote, DOCX, and other office documents quickly while preserving high quality.
Drop your file here
or click to select · .zip,.pptx,.key,.docx,.xlsx
Max size: 300.0 MB
Why use DeckFlow for this?
Smart Compression, Maintain Quality
Intelligently optimize document components without compromising visual quality.
Large File Support
Robust engine capable of handling massive documents up to 300 MB.
Rapid Cloud Processing, No Install
Runs entirely in the cloud — no software or plugin downloads required.
Universal Compatibility
Seamless access across Windows, Mac, iOS, and Android anytime, anywhere.
Frequently asked questions
Can I still edit the document after compression?+
Absolutely. Compression only optimizes media assets within the file and does not affect its editability.
Which file formats are supported?+
We support PPTX, Keynote, DOCX, XLSX, PDF, and ZIP, covering almost all major office formats.
What is the typical compression ratio?+
It varies by content. Documents with many high-res images often see a reduction of 50% to 80%.
Is it free to use?+
DeckFlow offers a free usage quota. New users receive free credits upon registration.