无法使用itextsharp找到图像数据或EI

问题描述

使用itextsharp从PDF文件中提取文本时出现错误无法找到图像数据或EI



我已经放置了我的代码和示例文件。请帮忙。





Dim simg，tmp，sImgPDFLst As String

simg = AOTD_SU_20131118_006.pdf

Dim reader As iTextSharp.text.pdf.PdfReader = Nothing

tmp = pdf.parser.PdfTextExtractor.GetTextFromPage（reader，1，New pdf.parser.SimpleTextExtractionStrategy（） ）

如果tmp.Length = 0那么

sImgPDFLst =以下文件是图像PDF

结束如果

reader.Dispose（）

reader.Close（）

reader = Nothing



链接：https： //drive.google.com/file/d/0B_nzYHWVJJ7KbnFSRWx5ZVNpSkk/edit?usp=sharing

While extracting text from PDF file using itextsharp iam getting an error "Could not find image data or EI"

I have placed my code and sample file. Kindly do the needful.


Dim simg,tmp,sImgPDFLst As String
simg = AOTD_SU_20131118_006.pdf
Dim reader As iTextSharp.text.pdf.PdfReader = Nothing
tmp = pdf.parser.PdfTextExtractor.GetTextFromPage(reader, 1, New pdf.parser.SimpleTextExtractionStrategy())
If tmp.Length = 0 Then
sImgPDFLst = "Following files are IMAGE PDF"
End If
reader.Dispose()
reader.Close()
reader = Nothing

Link: https://drive.google.com/file/d/0B_nzYHWVJJ7KbnFSRWx5ZVNpSkk/edit?usp=sharing

推荐答案

Imports iTextSharp.text
Imports iTextSharp.text.pdf
Imports System.IO

Partial Public Class WebForm2
    Inherits System.Web.UI.Page
    Dim path As String = Server.MapPath("PDFs")

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If GetTextFromPDF(path + "/AOTD_SU_20131118_006.pdf") <> "" Then
            Me.Label1.Text = GetTextFromPDF(path + "/AOTD_SU_20131118_006.pdf")
        Else
            Me.Label1.Text = "The PDF has Images"
        End If
    End Sub

    Public Shared Function GetTextFromPDF(ByVal PdfFileName As String) As String
        Dim oReader As New iTextSharp.text.pdf.PdfReader(PdfFileName)
        Dim i As Integer
        Dim sOut = ""

        For i = 1 To oReader.NumberOfPages
            Dim its As New iTextSharp.text.pdf.parser.SimpleTextExtractionStrategy

            sOut &= iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(oReader, i, its)
        Next

        Return sOut
    End Function

End Class

这篇关于无法使用itextsharp找到图像数据或EI的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！