Online File Compressor
Shrink the size of PPTX, Keynote, DOCX, and other office documents quickly while preserving high quality.
Drag file here or click to select
Accepted: .zip,.pptx,.key,.docx,.xlsx
Task History
Task history retained for 24 hours
How to Use
Upload File
Drag and drop or click to select the file you want to process. Multiple formats are supported.
Automatic Processing
Our cloud engine will process your file automatically. No software installation required.
Download Result
Once processing is complete, download the result file directly from the task list.
Features
Smart Compression, Maintain Quality
Intelligently optimize document components without compromising visual quality.
1GB Large File Support
Robust engine capable of handling massive documents up to 1GB.
Rapid Cloud Processing, No Install
Runs entirely in the browser—no software or plugin downloads required.
Universal Compatibility
Seamless access across Windows, Mac, iOS, and Android anytime, anywhere.
Frequently Asked Questions
Absolutely. Compression only optimizes media assets within the file and does not affect its editability or logic.
We support PPTX, Keynote, DOCX, XLSX, PDF, and ZIP, covering almost all major office formats.
It varies by content. Documents with many high-res images often see a reduction of 50% to 80%.
No. DeckFlow uses industry-standard optimization to ensure file integrity and zero-risk processing.
DeckFlow offers a free usage quota. New users receive free Credits upon registration, and you can claim a weekly bonus pack that is sufficient for most routine needs. For high-volume needs, you can visit our Pricing Page anytime to upgrade for more Credits.