Конвертирование HTML string в PDF bytes на C# и .NET
Полный код
GitHubusing System;
using System.IO;
using System.Collections;
using System.Net;
namespace Sample
{
class Test
{
static void Main(string[] args)
{
// Activate your license here
// SautinSoft.PdfMetamorphosis.SetLicense("1234567890");
SautinSoft.PdfMetamorphosis p = new SautinSoft.PdfMetamorphosis();
if (p != null)
{
string htmlPath = @"..\..\..\example.htm";
string pdfPath = Path.ChangeExtension(htmlPath, ".pdf");
string htmlString = "";
// The easiest way is using the method 'HtmlToPdfConvertFile':
// int ret = p.HtmlToPdfConvertFile(htmlPath,pdfPath);
// or :
// 1. Get HTML content.
htmlString = ReadFromFile(htmlPath);
// 2. Converting HTML to PDF
// Specify BaseUrl to help converter find a full path for relative images, CSS.
p.HtmlSettings.BaseUrl = Path.GetDirectoryName(Path.GetFullPath(htmlPath));
byte[] pdfBytes = p.HtmlToPdfConvertStringToByte(htmlString);
if (pdfBytes != null)
{
// 3. Save the PDF document to a file for a viewing purpose.
File.WriteAllBytes(pdfPath, pdfBytes);
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(pdfPath) { UseShellExecute = true });
}
else
{
System.Console.WriteLine("An error occurred during converting HTML to PDF!");
}
}
}
public static string ReadFromFile(string fileName)
{
try
{
FileInfo fi = new FileInfo(fileName);
FileStream strmRead = fi.Open(FileMode.Open);
int len = (int)fi.Length;
byte[] b = new byte[len];
strmRead.Read(b, 0, len);
strmRead.Close();
char[] arCharRes = new char[len];
for (int i = 0; i < len; i++)
{
arCharRes[i] = (char)b[i];
}
return new string(arCharRes);
}
catch
{
return "";
}
}
}
}
Imports System.IO
Namespace Sample
Friend Class Test
Shared Sub Main(ByVal args() As String)
' Activate your license here
' SautinSoft.PdfMetamorphosis.SetLicense("1234567890")
Dim p As New SautinSoft.PdfMetamorphosis()
If p IsNot Nothing Then
Dim htmlPath As String = "..\..\..\example.htm"
Dim pdfPath As String = Path.ChangeExtension(htmlPath, ".pdf")
Dim htmlString As String = ""
' The easiest way is using the method 'HtmlToPdfConvertFile':
' int ret = p.HtmlToPdfConvertFile(htmlPath,pdfPath)
' or :
' 1. Get HTML content.
htmlString = ReadFromFile(htmlPath)
' 2. Converting HTML to PDF
' Specify BaseUrl to help converter find a full path for relative images, CSS.
p.HtmlSettings.BaseUrl = Path.GetDirectoryName(Path.GetFullPath(htmlPath))
Dim pdfBytes() As Byte = p.HtmlToPdfConvertStringToByte(htmlString)
If pdfBytes IsNot Nothing Then
' 3. Save the PDF document to a file for a viewing purpose.
File.WriteAllBytes(pdfPath, pdfBytes)
System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(pdfPath) With {.UseShellExecute = True})
Else
System.Console.WriteLine("An error occurred during converting HTML to PDF!")
End If
End If
End Sub
Public Shared Function ReadFromFile(ByVal fileName As String) As String
Try
Dim fi As New FileInfo(fileName)
Dim strmRead As FileStream = fi.Open(FileMode.Open)
Dim len As Integer = CInt(fi.Length)
Dim b(len - 1) As Byte
strmRead.Read(b, 0, len)
strmRead.Close()
Dim arCharRes(len - 1) As Char
For i As Integer = 0 To len - 1
arCharRes(i) = Microsoft.VisualBasic.ChrW(b(i))
Next i
Return New String(arCharRes)
Catch
Return ""
End Try
End Function
End Class
End NamespaceЕсли вам нужен пример кода или у вас есть вопрос: напишите нам по адресу [email protected] или спросите в онлайн-чате (правый нижний угол этой страницы) или используйте форму ниже: