What is compressed in each document type?
| Type | Metadata Compression | Zip Compression | Lossless Image Compression |
|---|---|---|---|
| PDF (PDF/A) | Supported | ||
| DOCX | Supported | Supported | Supported |
| XLSX | Supported | Supported | |
| PPTX | Supported | Supported | Supported |
| JPG (JPEG) | Supported | Supported | |
| PNG | Supported | Supported |
DOC refers to the older Microsoft Word format used after 1997, while DOCX refers to the newer XML-based format, used after 2007.