[Conversion]: DOCX转换PDF文件大小问题

[king200143]

Source document type

DOCX

Authoring application

Generated programmatically (e.g. OpenXML SDK, EPPlus, NPOI)

Authoring application version

miniword 0.9.2

MiniPdf version

0.32.0

Environment

MiniPdf library

Runtime or host details

.NET 10.0.301

Operating system

Windows 11 专业版 25H2

Minimal test example

MiniPdf.ConvertToPdf(wordPath, pdfOutputPath);

原始word文件纯文本大小37kb，转换后的pdf文件大小3656kb

Input and output files

Additional context

[shps951023]

@king200143 请问能提供可复现文件吗

[king200143]

@king200143 请问能提供可复现文件吗

filledContract.docx
filledContract.pdf
templateContract.docx

templateContract是模板文件，简略实现代码如下：
// 模板文件路径
var templatePath = @"C:\Users\Administrator\Desktop\templateContract.docx";

// 填充数据
var values = new Dictionary<string, object>
{
["PartyA"] = "甲方公司",
["PartyB"] = "乙方公司",
["ChineseTime"] = $"{DateTime.Now:yyyy年MM月dd日}",
["Time"] = $"{DateTime.Now:yyyy-MM-dd}",
["Money"] = 666,
["BigMoney"] = "陆佰陆拾陆元",
["PartyACode"] = "WUISBIFUWBEUIBUI",
["PartyAddressAndPhone"] = "甲方注册地址",
["PartyABankAndAccount"] = "甲方银行开户行",
["PartyBBank"] = "乙方开户行",
["PartyBAccount"] = "乙方银行账户",
["PartyAAuthor"] = "张三",
["PartyBAuthor"] = "李四",
};

var templateBytes = await File.ReadAllBytesAsync(templatePath);
byte[] filledDocxBytes;
using (var outputDocxStream = new MemoryStream())
{
outputDocxStream.SaveAsByTemplate(templateBytes, values);
filledDocxBytes = outputDocxStream.ToArray();
}

// word路径
var filePath = @"C:\Users\Administrator\Desktop\filledContract.docx";
using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write))
{
fs.Write(filledDocxBytes, 0, filledDocxBytes.Length);
}

var pdfPath = @"C:\Users\Administrator\Desktop\filledContract.pdf";
// 转换PDF
MiniPdf.ConvertToPdf(filePath, pdfPath);

最终结果：无签章图片情况下，填充后docx大小12.7kb，转换后pdf大小3.53mb