pdf-converter（PDF 转换器）

PDF Converter

Convert PDF files to various formats and vice versa while preserving formatting.

Overview

This skill helps you:

• Convert PDFs to editable formats (Word, Excel)
• Convert documents to PDF
• Extract images from PDFs
• Optimize conversion quality
• Handle batch conversions

Supported Conversions

PDF to Other Formats

Other Formats to PDF

How to Use

Basic Conversion

"Convert this PDF to Word"
"Save this document as PDF"
"Extract this PDF as images"

With Options

"Convert PDF to Word, preserve exact formatting"
"Export PDF pages 1-5 as PNG images at 300 DPI"
"Convert Excel to PDF, fit all columns on one page"

Batch Conversion

"Convert all PDFs in this folder to Word documents"
"Create PDFs from these 10 Word files"

Conversion Guidelines

PDF to Word

## PDF to Word Conversion

### Best Practices
1. **Check source PDF type**:
   - Native PDF (from Word/etc): Best results
   - Scanned PDF: Use OCR first
   - Image-based: Limited accuracy

2. **Formatting considerations**:
   - Complex layouts may shift
   - Fonts substitute if not installed
   - Tables may need adjustment
   - Headers/footers require review

### Quality Settings
| Setting | Result |
|---------|--------|
| **Exact** | Matches layout precisely, harder to edit |
| **Editable** | Optimized for editing, may shift layout |
| **Text only** | Plain text, no formatting |

### Common Issues
| Issue | Solution |
|-------|----------|
| Text as image | Run OCR before converting |
| Missing fonts | Embed or substitute fonts |
| Broken tables | Manually adjust in Word |
| Lost colors | Check color profile settings |

PDF to Excel

## PDF to Excel Conversion

### Ideal Sources
- PDF with clear table structure
- Financial statements
- Data reports
- Invoices with line items

### Extraction Methods
| Method | Use When |
|--------|----------|
| **Auto-detect tables** | Clear table borders |
| **Select area** | Tables without borders |
| **Full page** | Entire page is data |

### Quality Tips
1. Ensure PDF has selectable text (not scanned)
2. Clean table borders help detection
3. Merged cells may cause issues
4. Multi-page tables need manual merge

### Data Cleanup
After conversion, check:
- [ ] Column alignment
- [ ] Number formatting
- [ ] Date formats
- [ ] Merged cell handling
- [ ] Header row detection

PDF to Images

## PDF to Image Conversion

### Resolution Settings
| DPI | Use Case | File Size |
|-----|----------|-----------|
| 72 | Screen viewing | Small |
| 150 | Email/web | Medium |
| 300 | Print quality | Large |
| 600 | High-quality print | Very large |

### Format Selection
| Format | Best For |
|--------|----------|
| **PNG** | Text, graphics, transparency |
| **JPG** | Photos, smaller files |
| **TIFF** | Print production |
| **WebP** | Web optimization |

### Output Options
- All pages → separate images
- Specific pages → selected images
- Page range → batch export

Document to PDF

## Converting to PDF

### From Word
**Settings**:
- [ ] Embed fonts
- [ ] Include bookmarks
- [ ] Set PDF/A for archival
- [ ] Compress images (optional)

### From Excel
**Settings**:
- [ ] Define print area
- [ ] Set page breaks
- [ ] Choose orientation
- [ ] Fit to page options

### From PowerPoint
**Settings**:
- [ ] Slide range
- [ ] Include notes (optional)
- [ ] Quality level
- [ ] Handout format (optional)

### Universal Tips
1. Review in print preview first
2. Check page breaks
3. Ensure fonts are embedded
4. Verify hyperlinks work

Batch Processing

Batch Conversion Template

## Batch Conversion Job

**Source**: [Folder path]
**Target Format**: [Format]
**Output Folder**: [Path]

### Files to Convert
| File | Pages | Status |
|------|-------|--------|
| document1.pdf | All | ✅ Complete |
| document2.pdf | All | ✅ Complete |
| document3.pdf | 1-5 | ⏳ Processing |

### Settings Applied
- Resolution: [X] DPI
- Quality: [High/Medium/Low]
- Naming: [Original name]_converted.[ext]

### Summary
- Total files: [X]
- Successful: [Y]
- Failed: [Z]

Troubleshooting

Common Issues

Quality Checklist

After conversion, verify:

• All text present and readable
• Formatting approximately preserved
• Images included and clear
• Tables properly structured
• Links functional (if applicable)
• Page count matches

Tool Recommendations

Online Tools

• Adobe Acrobat (best quality)
• SmallPDF (easy to use)
• ILovePDF (batch friendly)
• PDF24 (free, good quality)

Desktop Software

• Adobe Acrobat Pro
• Microsoft Office (built-in)
• LibreOffice (free)
• Foxit PDF Editor

Command Line

• Pandoc (text formats)
• ImageMagick (images)
• pdftk (PDF manipulation)
• Poppler utilities

Limitations

• Cannot perform actual file conversion (provides guidance)
• Scanned PDFs require OCR preprocessing
• Complex layouts may not convert perfectly
• Password-protected PDFs need password
• Some formatting always lost in conversion
• Quality depends on source PDF type