DocumentCore dc = DocumentCore.Load(@"d:\Book.pdf");
Объект dc представляет собой документ "Book.pdf", загруженный в память. Формат файла определяется автоматически по расширению файла: ".pdf".
После загрузки Вы получите документ, представленный в виде Tree Of Objects, где корневым узлом является класс DocumentCore.
Чтобы гарантировать, что загружаемый контент действительно является PDF, и установить некоторые параметры загрузки, используя PdfLoadOptions в качестве второго параметра.
DocumentCore dc = DocumentCore.Load(@"d:\Book.pdf", new PdfLoadOptions());
// Assume that we already have a PDF document as bytes array.
byte[] pdfBytes = null;
// pdfBytes = ...
DocumentCore dc = null;
using (MemoryStream pdfStream = new MemoryStream(fileBytes))
{
// Specifying PdfLoadOptions we explicitly set that a loadable document is PDF.
PdfLoadOptions pdfLO = new PdfLoadOptions()
{
// 'false' - means to load vector graphics as is. Don't transform it to raster images.
RasterizeVectorGraphics = false,
// The PDF format doesn't have real tables, in fact it's a set of orthogonal graphic lines.
// In case of 'true' the component will detect and recreate tables from graphic lines.
DetectTables = false,
// 'Disabled' - Never load embedded fonts in PDF. Use the fonts with the same name installed at the system or similar by font metrics.
// 'Enabled' - Always load embedded fonts in PDF.
// 'Auto' - Load only embedded fonts missing in the system. In other case, use the system fonts.
PreserveEmbeddedFonts = PropertyState.Auto,
// Load only the 1st page from the document.
PageIndex = 0,
PageCount = 1
};
// Load a PDF document from the MemoryStream.
dc = DocumentCore.Load(pdfStream, new PdfLoadOptions());
}
// Here we can do with our document 'dc' anything we need.
Полный код
using System;
using System.IO;
using SautinSoft.Document;
namespace Example
{
class Program
{
static void Main(string[] args)
{
// Get your free 100-day key here:
// https://sautinsoft.com/start-for-free/
LoadPDFFromFile();
//LoadPDFFromStream();
}
/// <summary>
/// Loads a PDF document into DocumentCore (dc) from a file.
/// </summary>
/// <remarks>
/// Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/load-pdf-document-net-csharp-vb.php
/// </remarks>
static void LoadPDFFromFile()
{
string filePath = @"..\..\..\example.pdf";
// The file format is detected automatically from the file extension: ".pdf".
// But as shown in the example below, we can specify PdfLoadOptions as 2nd parameter
// to explicitly set that a loadable document has PDF format.
DocumentCore dc = DocumentCore.Load(filePath);
if (dc != null)
Console.WriteLine("Loaded successfully!");
Console.ReadKey();
}
/// <summary>
/// Loads a PDF document into DocumentCore (dc) from a MemoryStream.
/// </summary>
/// <remarks>
/// Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/load-pdf-document-net-csharp-vb.php
/// </remarks>
static void LoadPDFFromStream()
{
// Assume that we already have a PDF document as bytes array.
byte[] fileBytes = File.ReadAllBytes(@"..\..\..\example.pdf");
DocumentCore dc = null;
// Create a MemoryStream
using (MemoryStream pdfStream = new MemoryStream(fileBytes))
{
// Specifying PdfLoadOptions we explicitly set that a loadable document is PDF.
PdfLoadOptions pdfLO = new PdfLoadOptions()
{
// 'false' - means to load vector graphics as is. Don't transform it to raster images.
RasterizeVectorGraphics = false,
// The PDF format doesn't have real tables, in fact it's a set of orthogonal graphic lines.
// In case of 'true' the component will detect and recreate tables from graphic lines.
DetectTables = false,
// 'Disabled' - Never load embedded fonts in PDF. Use the fonts with the same name installed at the system or similar by font metrics.
// 'Enabled' - Always load embedded fonts in PDF.
// 'Auto' - Load only embedded fonts missing in the system. In other case, use the system fonts.
PreserveEmbeddedFonts = PropertyState.Auto,
// Load only the 1st page from the document.
PageIndex = 0,
PageCount = 1
};
// Load a PDF document from the MemoryStream.
dc = DocumentCore.Load(pdfStream, new PdfLoadOptions());
}
if (dc != null)
Console.WriteLine("Loaded successfully!");
Console.ReadKey();
}
}
}
Imports System
Imports System.IO
Imports SautinSoft.Document
Module Sample
Sub Main()
LoadPDFFromFile()
'LoadPDFFromStream()
End Sub
''' Get your free 100-day key here:
''' https://sautinsoft.com/start-for-free/
''' <summary>
''' Loads a PDF document into DocumentCore (dc) from a file.
''' </summary>
''' <remarks>
''' Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/load-pdf-document-net-csharp-vb.php
''' </remarks>
Sub LoadPDFFromFile()
Dim filePath As String = "..\..\..\example.pdf"
' The file format is detected automatically from the file extension: ".pdf".
' But as shown in the example below, we can specify PdfLoadOptions as 2nd parameter
' to explicitly set that a loadable document has PDF format.
Dim dc As DocumentCore = DocumentCore.Load(filePath)
If dc IsNot Nothing Then
Console.WriteLine("Loaded successfully!")
End If
Console.ReadKey()
End Sub
''' <summary>
''' Loads a PDF document into DocumentCore (dc) from a MemoryStream.
''' </summary>
''' <remarks>
''' Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/load-pdf-document-net-csharp-vb.php
''' </remarks>
Sub LoadPDFFromStream()
' Assume that we already have a PDF document as bytes array.
Dim fileBytes() As Byte = File.ReadAllBytes("..\..\..\example.pdf")
Dim dc As DocumentCore = Nothing
' Create a MemoryStream
Using pdfStream As New MemoryStream(fileBytes)
' Specifying PdfLoadOptions we explicitly set that a loadable document is PDF.
Dim pdfLO As New PdfLoadOptions()
With pdfLO
.RasterizeVectorGraphics = False
.DetectTables = False
' 'Disabled' - Never load embedded fonts in PDF. Use the fonts with the same name installed at the system or similar by font metrics.
' 'Enabled' - Always load embedded fonts in PDF.
' 'Auto' - Load only embedded fonts missing in the system. In other case, use the system fonts.
.PreserveEmbeddedFonts = PropertyState.Auto
.PageIndex = 0
.PageCount = 1
End With
' RasterizeVectorGraphics = False
' This means to load vector graphics as is. Don't transform it to raster images.
' DetectTables = False
' This means don't detect tables.
' The PDF format doesn't have real tables, in fact it's a set of orthogonal graphic lines.
' Set it to 'True' and the component will detect and recreate tables from graphic lines.
' Load a PDF document from the MemoryStream.
dc = DocumentCore.Load(pdfStream, New PdfLoadOptions())
End Using
If dc IsNot Nothing Then
Console.WriteLine("Loaded successfully!")
End If
Console.ReadKey()
End Sub
End Module
Если вам нужен пример кода или у вас есть вопрос: напишите нам по адресу support@sautinsoft.com или спросите в онлайн-чате (правый нижний угол этой страницы) или используйте форму ниже: