# ConvertHub - Complete File Conversion Service

## Comprehensive Format Support

### Image Formats (All Conversions Available Between Formats)

**Common Formats:**
- JPG/JPEG - Joint Photographic Experts Group format, ideal for photographs
- PNG - Portable Network Graphics, supports transparency
- GIF - Graphics Interchange Format, supports animation
- WebP - Modern web image format with superior compression
- BMP - Bitmap image format
- TIFF - Tagged Image File Format, used in professional photography

**Professional Formats:**
- PSD - Adobe Photoshop Document
- EPS - Encapsulated PostScript
- PS - PostScript
- TGA - Truevision Graphics Adapter
- ICNS - Apple Icon Image format
- AVIF - AV1 Image File Format

**Mobile Formats:**
- HEIC/HEIF - High Efficiency Image Format (iPhone photos)

### Document Formats

**Office Documents:**
- DOC/DOCX - Microsoft Word documents
- XLS/XLSX - Microsoft Excel spreadsheets
- PPT/PPTX - Microsoft PowerPoint presentations
- PPTM - PowerPoint Macro-Enabled Presentation
- POT/POTX - PowerPoint templates
- PPS/PPSX - PowerPoint slide shows

**Other Documents:**
- PDF - Portable Document Format
- HTML/HTM - Web page format
- RTF - Rich Text Format
- TXT - Plain text
- CSV - Comma-separated values
- ODT - OpenDocument Text
- ODS - OpenDocument Spreadsheet
- ODP - OpenDocument Presentation
- PAGES - Apple Pages document
- KEY - Apple Keynote presentation
- NUMBERS - Apple Numbers spreadsheet

### E-book Formats

- EPUB - Electronic Publication, open e-book standard
- MOBI - Mobipocket e-book format (Kindle compatible)
- AZW/AZW3 - Amazon Kindle formats
- FB2 - FictionBook format
- LIT - Microsoft Reader format
- PDB - Palm Database format
- TCR - Text Compression for Reader

### Audio Formats

- MP3 - MPEG Audio Layer III
- WAV - Waveform Audio File Format
- OGG - Ogg Vorbis
- FLAC - Free Lossless Audio Codec
- AAC - Advanced Audio Coding
- M4A - MPEG-4 Audio
- WMA - Windows Media Audio
- AIFF - Audio Interchange File Format
- OPUS - Opus Audio Codec

### Video Formats

- MP4 - MPEG-4 Part 14
- AVI - Audio Video Interleave
- MKV - Matroska Video
- MOV - QuickTime Movie
- WMV - Windows Media Video
- FLV - Flash Video
- WEBM - Web Media format
- MPG/MPEG - Moving Picture Experts Group
- 3GP - 3GPP multimedia
- M4V - MPEG-4 Video

### Archive Formats

- ZIP - ZIP archive
- RAR - RAR archive
- 7Z - 7-Zip archive
- TAR - Tape Archive
- GZ - GNU Zip
- BZ2 - Bzip2 compressed

## Conversion Matrix

### Most Popular Image Conversions
- JPG → PNG: Add transparency support to photos
- PNG → JPG: Reduce file size for web use
- WebP → JPG/PNG: Convert modern format to universal formats
- HEIC → JPG: Convert iPhone photos for compatibility
- GIF → MP4: Convert animations to video
- PSD → PNG/JPG: Export Photoshop files to web formats
- TIFF → JPG: Convert professional photos for web use
- BMP → PNG: Modernize old bitmap images

### Most Popular Document Conversions
- PDF → DOCX: Make PDFs editable in Word
- DOCX → PDF: Create universal documents from Word
- HTML → PDF: Convert web pages to printable format
- XLSX → PDF: Convert spreadsheets to shareable format
- PPTX → PDF: Convert presentations to view-only format
- RTF → PDF: Convert rich text to standard format
- TXT → PDF: Create formatted documents from plain text
- PAGES → DOCX: Convert Apple documents to Microsoft format

### Most Popular E-book Conversions
- EPUB → MOBI: Prepare books for Kindle
- MOBI → EPUB: Convert Kindle books to universal format
- PDF → EPUB: Create reflowable e-books from PDFs
- AZW → EPUB: Convert Amazon books to open format
- FB2 → EPUB: Convert FictionBook to standard format
- DOCX → EPUB: Create e-books from Word documents

## Advanced Features

### Image Processing Tools
- **Resize**: Change image dimensions while maintaining aspect ratio
- **Rotate**: Rotate images 90°, 180°, or 270°
- **Flip**: Mirror images horizontally or vertically
- **Invert Colors**: Create negative images
- **Format Optimization**: Automatic quality adjustment

### Batch Processing
- Convert multiple files simultaneously
- Apply same conversion settings to all files
- Download as ZIP archive
- Progress tracking for each file
- Available for premium users

### API Capabilities
```
POST /api/convert
Parameters:
- source_format: Input file format
- target_format: Desired output format
- file: File data (base64 or multipart)
- options: Conversion settings (quality, size, etc.)

Response:
- converted_file: URL to download converted file
- status: success/error
- metadata: File information
```

## Quality Settings

### Image Quality Options
- **Maximum**: Lossless or highest quality (largest file size)
- **High**: 95% quality (recommended for photos)
- **Medium**: 85% quality (balanced size/quality)
- **Low**: 70% quality (smaller files)
- **Custom**: Set specific quality percentage

### Document Conversion Options
- **Layout Preservation**: Maintain original formatting
- **Text Only**: Extract text content
- **Image Resolution**: DPI settings for embedded images
- **Font Embedding**: Include fonts in PDFs
- **Compression**: Reduce file size

## Technical Specifications

### File Size Limits
- Free users: 50MB per file
- Premium users: 100MB per file
- Batch conversion: 500MB total
- API access: 200MB per request

### Processing Speed
- Small files (<5MB): 2-5 seconds
- Medium files (5-25MB): 5-15 seconds
- Large files (25-100MB): 15-60 seconds
- Batch processing: Parallel processing available

### Supported Browsers
- Chrome 90+
- Firefox 88+
- Safari 14+
- Edge 90+
- Opera 76+

## Use Case Examples

### For Photographers
"Convert RAW images to JPEG for client delivery"
"Batch convert TIFF archives to web-friendly formats"
"Create WebP versions for faster website loading"

### For Students
"Convert lecture PDFs to Word for note-taking"
"Transform PowerPoints to PDFs for printing"
"Convert e-books between formats for different devices"

### For Businesses
"Batch convert legacy documents to PDF for archiving"
"Convert Excel reports to PDF for distribution"
"Transform Word proposals to PDF for clients"

### For Web Developers
"Optimize images for web performance"
"Convert PSDs to production-ready formats"
"Generate multiple format versions for responsive design"

### For Authors
"Convert manuscripts from DOCX to EPUB"
"Prepare books for multiple e-reader platforms"
"Transform PDFs to reflowable e-book formats"

## SEO & Accessibility

- All pages include semantic HTML5 markup
- Images have descriptive alt text
- ARIA labels for interactive elements
- Structured data for search engines
- Mobile-responsive design
- Fast loading times (<2 seconds)

## Integration Options

### WordPress Plugin
- Direct integration with media library
- Bulk conversion tools
- Automatic format optimization

### Browser Extensions
- Right-click conversion menu
- Drag-and-drop interface
- Quick access toolbar

### Desktop Application
- Offline conversion capability
- Watch folder functionality
- Command-line interface

## Frequently Requested Conversions

1. JPG to PNG - Add transparency to images
2. PNG to JPG - Reduce file size
3. PDF to Word - Edit PDF content
4. Word to PDF - Create shareable documents
5. HEIC to JPG - Convert iPhone photos
6. WebP to PNG - Ensure compatibility
7. EPUB to MOBI - Prepare for Kindle
8. Excel to PDF - Share spreadsheets
9. PowerPoint to PDF - Distribute presentations
10. HTML to PDF - Save web pages

## Data Handling

### Privacy Policy
- No permanent storage of user files
- Automatic deletion after 1 hour
- Encrypted transmission (SSL/TLS)
- No access to file contents by staff
- GDPR and CCPA compliant

### Security Measures
- Isolated conversion environments
- Malware scanning on uploads
- Rate limiting to prevent abuse
- Regular security audits
- Bug bounty program

## Support Resources

- Email: support@converthub.com
- Knowledge Base: https://converthub.com/faq
- API Documentation: https://converthub.com/api