Route: Format / Layout

Workflow

1. Read current document (pandoc for content, unpack for structure)
2. Identify format requirements from user
3. Use unit conversion table (see SKILL.md)
4. Apply formatting via OOXML manipulation or python-docx
5. Pack and verify

Quick Formatting via python-docx

For simple formatting tasks, python-docx is often faster than raw XML:

from docx import Document as PythonDocument
from docx.shared import Pt, Cm, Twips
from docx.enum.text import WD_ALIGN_PARAGRAPH

doc = PythonDocument("input.docx")

# Change all body paragraph formatting
for para in doc.paragraphs:
    if para.style.name.startswith("Heading"):
        continue
    para.paragraph_format.first_line_indent = Twips(420)
    para.paragraph_format.line_spacing = 1.5
    para.paragraph_format.alignment = WD_ALIGN_PARAGRAPH.JUSTIFY
    for run in para.runs:
        run.font.name = "宋体"
        run.font.size = Pt(12)  # Xiao Si 小四

doc.save("output.docx")

Common Format Request Patterns

University Thesis Formatting

Typical Chinese university thesis requirements:

from docx.shared import Cm, Pt, Twips

# Margins
for section in doc.sections:
    section.top_margin = Cm(2.5)
    section.bottom_margin = Cm(2.5)
    section.left_margin = Cm(3.0)
    section.right_margin = Cm(2.5)

# Fonts
# Body: SimSun 宋体 Xiao Si 小四 (12pt)
# H1: SimHei 黑体 San Hao 三号 (16pt) centered
# H2: SimHei 黑体 Si Hao 四号 (14pt)
# H3: SimHei 黑体 Xiao Si 小四 (12pt)
# English: Times New Roman, same sizes

Page Numbers Starting from Specific Page

Use multi-section approach:

# Section 1: Front matter (Roman numerals)
# Section 2: Main content (Arabic, starting from 1)
# This requires OOXML manipulation — see routes/edit.md for unpack/pack workflow

In raw XML (word/document.xml):

<w:sectPr>
  <w:pgNumType w:fmt="upperRoman" w:start="1"/>
</w:sectPr>
<!-- New section -->
<w:sectPr>
  <w:pgNumType w:fmt="decimal" w:start="1"/>
</w:sectPr>

Different Headers Per Section

Each section in a .docx can have its own header/footer. See references/docx-js-advanced.md for the multi-section approach.

For existing documents, modify word/document.xml to split <w:sectPr> and create separate headerN.xml files.

Font Size Conversion

When user requests a Chinese font size name:

Request	Action
"Change to Wu Hao (5th) size"	`font.size = Pt(10.5)` or `size: 21` in docx-js
"Title in San Hao SimHei"	`font.size = Pt(16)`, `font.name = "SimHei"`
"Body in Xiao Si SimSun"	`font.size = Pt(12)`, `font.name = "SimSun"`

Line Spacing Adjustment

from docx.shared import Twips

# 1.0x spacing
para.paragraph_format.line_spacing_rule = WD_LINE_SPACING.MULTIPLE
para.paragraph_format.line_spacing = 1.0

# 1.3x spacing (our default)
para.paragraph_format.line_spacing = 1.5

# Fixed spacing (e.g., 28pt)
para.paragraph_format.line_spacing_rule = WD_LINE_SPACING.EXACTLY
para.paragraph_format.line_spacing = Pt(28)

Verification

After formatting changes:

Open in LibreOffice or convert to PDF for visual check
Extract text with pandoc to ensure content unchanged
Compare file sizes (formatting-only changes shouldn't dramatically change size)

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