- **Storage**: MinIO/S3-compatible

### Content Formats

Office (Word, Excel, PowerPoint), PDF, Archives (ZIP, TAR, GZ), HTML, XML, JSON, Media (audio/video metadata), Images (EXIF/IPTC/XMP)

---

## Architecture

### Module Structure

```
fess-crawler-parent/
├── fess-crawler/              # Core framework
├── fess-crawler-lasta/        # LastaFlute DI integration

- OpenOffice/LibreOffice documents
- RTF, WordPerfect

#### PDFs and Images
- PDF documents (text and metadata extraction)
- Images (JPEG, PNG, GIF, TIFF, BMP)
- Image metadata (EXIF, IPTC, XMP)

#### Archives and Compressed Files
- ZIP, TAR, GZ archives
- LHA compression format
- Nested archive extraction

#### Web and Markup
- HTML, XHTML with XPath support
- XML documents

    <_comment>XML syntax for RDF graphs</_comment>

    <glob pattern="*.rdf"/>
    <glob pattern="*.owl"/>
    <glob pattern="^rdf$" isregex="true"/>
    <glob pattern="^owl$" isregex="true"/>
    <glob pattern="*.xmp"/>
  </mime-type>

  <mime-type type="application/reginfo+xml">
    <glob pattern="*.rif"/>
  </mime-type>
  <mime-type type="application/relax-ng-compact-syntax">
    <sub-class-of type="text/plain"/>