使用Python在PDF文档中自动创建与填写表单

pip install spire.pdf.free

from spire.pdf.common import *
from spire.pdf import *

outputFile = "ContractTemplate.pdf"

# 创建 PDF 文档
doc = PdfDocument()
# 允许在已有文档上创建表单（新建文档时也建议显式设置）
doc.AllowCreateForm = True

# 添加一个页面
page = doc.Pages.Add()

# 创建字体与画刷
titleFont = PdfTrueTypeFont("微软雅黑", 18.0, PdfFontStyle.Bold, True)
labelFont = PdfTrueTypeFont("微软雅黑", 11.0, PdfFontStyle.Regular, True)
fieldFont = PdfTrueTypeFont("宋体", 11.0, PdfFontStyle.Regular, True)
brush = PdfBrushes.get_Black()
hintBrush = PdfBrushes.get_DodgerBlue()

# 绘制合同标题
titleFormat = PdfStringFormat(PdfTextAlignment.Center)
page.Canvas.DrawString("供应商合作协议", titleFont, brush,
                        page.Canvas.ClientSize.Width / float(2), 40.0, titleFormat)

# 绘制说明文字
page.Canvas.DrawString("请填写以下字段后签署，带 * 字段为必填项。", labelFont, hintBrush, 50.0, 80.0)

# 字段起始坐标
x = 50.0
y = 120.0
labelGap = 15.0
fieldWidth = 200.0
fieldHeight = 18.0

# 1) 添加"供应商名称"文本框字段
label1 = "供应商名称 *："
page.Canvas.DrawString(label1, labelFont, brush, x, y)
textX = x + labelFont.MeasureString(label1).Width + labelGap
textBoxName = PdfTextBoxField(page, "vendor_name")
textBoxName.Bounds = RectangleF(textX, y, fieldWidth, fieldHeight)
textBoxName.BorderWidth = 0.75
textBoxName.BorderStyle = PdfBorderStyle.Solid
textBoxName.Font = fieldFont
doc.Form.Fields.Add(textBoxName)

# 2) 添加"统一社会信用代码"文本框字段
y = y + 40.0
label2 = "信用代码 *："
page.Canvas.DrawString(label2, labelFont, brush, x, y)
textX = x + labelFont.MeasureString(label2).Width + labelGap
textBoxCode = PdfTextBoxField(page, "credit_code")
textBoxCode.Bounds = RectangleF(textX, y, fieldWidth, fieldHeight)
textBoxCode.BorderWidth = 0.75
textBoxCode.BorderStyle = PdfBorderStyle.Solid
textBoxCode.Font = fieldFont
doc.Form.Fields.Add(textBoxCode)

# 3) 添加"合同金额（元）"文本框字段
y = y + 40.0
label3 = "合同金额 *："
page.Canvas.DrawString(label3, labelFont, brush, x, y)
textX = x + labelFont.MeasureString(label3).Width + labelGap
textBoxAmount = PdfTextBoxField(page, "amount")
textBoxAmount.Bounds = RectangleF(textX, y, fieldWidth, fieldHeight)
textBoxAmount.BorderWidth = 0.75
textBoxAmount.BorderStyle = PdfBorderStyle.Solid
textBoxAmount.Font = fieldFont
doc.Form.Fields.Add(textBoxAmount)

# 4) 添加"签署日期"文本框字段
y = y + 40.0
label4 = "签署日期 *："
page.Canvas.DrawString(label4, labelFont, brush, x, y)
textX = x + labelFont.MeasureString(label4).Width + labelGap
textBoxDate = PdfTextBoxField(page, "sign_date")
textBoxDate.Bounds = RectangleF(textX, y, fieldWidth, fieldHeight)
textBoxDate.BorderWidth = 0.75
textBoxDate.BorderStyle = PdfBorderStyle.Solid
textBoxDate.Font = fieldFont
doc.Form.Fields.Add(textBoxDate)

# 5) 添加"付款方式"列表框字段
y = y + 40.0
label5 = "付款方式 *："
page.Canvas.DrawString(label5, labelFont, brush, x, y)
textX = x + labelFont.MeasureString(label5).Width + labelGap
listBoxPayment = PdfListBoxField(page, "payment_method")
listBoxPayment.Items.Add(PdfListFieldItem("一次性付清", "pay_once"))
listBoxPayment.Items.Add(PdfListFieldItem("分期付款（按月）", "pay_monthly"))
listBoxPayment.Items.Add(PdfListFieldItem("分期付款（按季）", "pay_quarterly"))
listBoxPayment.Items.Add(PdfListFieldItem("验收后付款", "pay_after_accept"))
listBoxPayment.Bounds = RectangleF(textX, y, fieldWidth, 60.0)
listBoxPayment.Font = fieldFont
listBoxPayment.SelectedIndex = 0
doc.Form.Fields.Add(listBoxPayment)

# 保存模板
doc.SaveToFile(outputFile, FileFormat.PDF)
doc.Close()

from spire.pdf.common import *
from spire.pdf import *

inputFile = "ContractTemplate.pdf"
outputFile = "FilledContract.pdf"

# 加载合同模板
doc = PdfDocument()
doc.LoadFromFile(inputFile)

# 获取表单并转换为 FormWidget
pdfform = doc.Form
formWidget = PdfFormWidget(pdfform)

# 业务数据：来自数据库或 Excel 的供应商信息
vendorData = {
    "vendor_name": "成都**科技有限公司",
    "credit_code": "91510100MA6XXXXXX9X",
    "amount": "128000.00",
    "sign_date": "2026-08-28"
}

# 遍历所有字段并按名称填充
if formWidget.FieldsWidget.Count > 0:
    for i in range(formWidget.FieldsWidget.Count):
        field = formWidget.FieldsWidget.get_Item(i)

        # 处理文本框字段
        if isinstance(field, PdfTextBoxFieldWidget):
            textBoxField = field if isinstance(field, PdfTextBoxFieldWidget) else None
            if textBoxField.Name in vendorData:
                textBoxField.Text = vendorData[textBoxField.Name]

        # 处理列表框字段
        if isinstance(field, PdfListBoxWidgetFieldWidget):
            listBoxField = field if isinstance(field, PdfListBoxWidgetFieldWidget) else None
            if listBoxField.Name == "payment_method":
                # 选择"分期付款（按月）"
                listBoxField.SelectedIndex = [1]

# 保存填写后的合同
doc.SaveToFile(outputFile)
doc.Close()

from spire.pdf.common import *
from spire.pdf import *

def fillContract(templatePath, outputPath, vendorData, paymentIndex):
    doc = PdfDocument()
    doc.LoadFromFile(templatePath)
    formWidget = PdfFormWidget(doc.Form)

    if formWidget.FieldsWidget.Count > 0:
        for i in range(formWidget.FieldsWidget.Count):
            field = formWidget.FieldsWidget.get_Item(i)
            if isinstance(field, PdfTextBoxFieldWidget):
                textBoxField = field if isinstance(field, PdfTextBoxFieldWidget) else None
                if textBoxField.Name in vendorData:
                    textBoxField.Text = vendorData[textBoxField.Name]
            if isinstance(field, PdfListBoxWidgetFieldWidget):
                listBoxField = field if isinstance(field, PdfListBoxWidgetFieldWidget) else None
                if listBoxField.Name == "payment_method":
                    listBoxField.SelectedIndex = [paymentIndex]
    doc.SaveToFile(outputPath)
    doc.Close()

# 供应商列表（实际来自数据库查询）
vendors = [
    {"vendor_name": "成都云启科技有限公司", "credit_code": "91510100MA6XXXXXX9X",
     "amount": "128000.00", "sign_date": "2026-08-28"},
    {"vendor_name": "深圳前海数据服务有限公司", "credit_code": "91440300MA5XXXXXX3X",
     "amount": "86500.00", "sign_date": "2026-08-28"},
    {"vendor_name": "杭州数澜科技股份有限公司", "credit_code": "91330106MA2XXXXXX1X",
     "amount": "210000.00", "sign_date": "2026-08-28"},
]

# 批量生成
for idx, vendor in enumerate(vendors):
    fillContract("ContractTemplate.pdf", f"Contracts/Contract_{idx + 1}.pdf", vendor, 0)

from spire.pdf.common import *
from spire.pdf import *

inputFile = "FilledContract.pdf"
outputFile = "ExtractedFormData.txt"

# 加载已填写的合同
doc = PdfDocument()
doc.LoadFromFile(inputFile)
formWidget = PdfFormWidget(doc.Form)

result = []

if formWidget.FieldsWidget.Count > 0:
    for i in range(formWidget.FieldsWidget.Count):
        field = formWidget.FieldsWidget.get_Item(i)

        # 提取文本框字段值
        if isinstance(field, PdfTextBoxFieldWidget):
            textBoxField = field if isinstance(field, PdfTextBoxFieldWidget) else None
            result.append(f"字段名：{textBoxField.Name}，值：{textBoxField.Text}")

        # 提取列表框字段值
        if isinstance(field, PdfListBoxWidgetFieldWidget):
            listBoxField = field if isinstance(field, PdfListBoxWidgetFieldWidget) else None
            selectedValue = listBoxField.SelectedValue
            result.append(f"字段名：{listBoxField.Name}，选中值：{selectedValue}")

# 保存提取结果
with open(outputFile, "w", encoding="UTF-8") as f:
    for line in result:
        f.write(line + "\n")

doc.Close()

from spire.pdf.common import *
from spire.pdf import *

inputFile = "ContractTemplate.pdf"
outputFile = "ManagedContract.pdf"

doc = PdfDocument()
doc.LoadFromFile(inputFile)
formWidget = PdfFormWidget(doc.Form)

if formWidget.FieldsWidget.Count > 0:
    for i in range(formWidget.FieldsWidget.Count):
        field = formWidget.FieldsWidget.get_Item(i)

        if isinstance(field, PdfTextBoxFieldWidget):
            textBoxField = field if isinstance(field, PdfTextBoxFieldWidget) else None
            # 将关键字段标记为必填
            if textBoxField.Name in ["vendor_name", "credit_code", "amount", "sign_date"]:
                textBoxField.Required = True
            # 为字段设置统一字体，提升填写后的视觉效果
            textBoxField.Font = PdfTrueTypeFont("宋体", 11.0, PdfFontStyle.Regular, True)

# 保存
doc.SaveToFile(outputFile)
doc.Close()

from spire.pdf.common import *
from spire.pdf import *

inputFile = "FilledContract.pdf"
outputFile = "FlattenedContract.pdf"

doc = PdfDocument()
doc.LoadFromFile(inputFile)

# 扁平化所有表单字段：字段值转为普通文本，不再可编辑
doc.Form.IsFlatten = True

doc.SaveToFile(outputFile)
doc.Close()

from spire.pdf.common import *
from spire.pdf import *

inputFile = "ContractTemplate.pdf"
outputFile = "RemovedFieldContract.pdf"

doc = PdfDocument()
doc.LoadFromFile(inputFile)
formWidget = PdfFormWidget(doc.Form)

if formWidget.FieldsWidget.Count > 0:
    i = 0
    while i < formWidget.FieldsWidget.Count:
        field = formWidget.FieldsWidget.get_Item(i)
        if isinstance(field, PdfTextBoxFieldWidget):
            textBoxField = field if isinstance(field, PdfTextBoxFieldWidget) else None
            # 删除"签署日期"字段
            if textBoxField.Name == "sign_date":
                formWidget.FieldsWidget.Remove(textBoxField)
                continue
        i = i + 1

doc.SaveToFile(outputFile)
doc.Close()