Smart Compression, Maintain Quality
Intelligently optimize document components without compromising visual quality.
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 · Maximum 1024 MB
Task History
Results retained for 24 hLoading…
How to Use
Upload your file
Drag and drop your file or click to browse from your device.
Process automatically
Our service processes your file securely on the server.
Download result
Once processing finishes, download the result in one click.
Why use DeckFlow for this?
Large File Support
Compressor uploads support files up to 1024 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, and ZIP. PDF is not supported by this compressor.
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?
Yes. Sign up for a free account to get credits and start conversion. Guests can upload a file, but processing begins after sign-up. Free accounts support uploads up to 30 MB.