c# - 如何保存已编辑的 pdf？

Question

我想保存编辑过的 pdf 模板。我该怎么做？

using (MemoryStream ms = new MemoryStream())  
{    
    PdfReader reader = new PdfReader("~/Content/Documents/Agreement.pdf");
    PdfStamper formFiller = new PdfStamper(reader, ms);
    AcroFields formFields = formFiller.AcroFields;
    formFields.SetField("Name", formData.Name);
    formFields.SetField("Location", formData.Address);
    formFields.SetField("Date", DateTime.Today.ToShortDateString());
    formFields.SetField("Email", formData.Email);
    formFiller.FormFlattening = true;
    formFiller.Close();
}

Answer 1

如 this example ，您只需要使用 FileStream 而不是 MemoryStream。

代码应该是这样的:

string newFile = @".\FormDocument_out.pdf";    
FileStream fs = new FileStream(newFile, FileMode.Create);    
try
{
        PdfReader reader = new PdfReader("~/Content/Documents/Agreement.pdf");
        PdfStamper formFiller = new PdfStamper(reader, fs);  
        AcroFields formFields = formFiller.AcroFields;
        formFields.SetField("Name", formData.Name);
        formFields.SetField("Location", formData.Address);
        formFields.SetField("Date", DateTime.Today.ToShortDateString());
        formFields.SetField("Email", formData.Email);
        formFiller.FormFlattening = true;
        formFiller.Close();
}
catch(Exception)
{
    throw;
}
finally
{
    fs.Close();
}