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IsPdfA Method

Summary

Determines if the specified file is PDF/A.

Syntax
C#
VB
C++
public static bool IsPdfA( 
   string fileName 
) 
Public Shared Function IsPdfA( 
   ByVal fileName As String 
) As Boolean 
public:  
   static bool IsPdfA( 
      String^ fileName 
   ) 

Parameters

fileName

The name of the PDF file.

Return Value

true if the specified file is PDF/A; otherwise, false.

Remarks

This method checks whether the file claims to be PDF/A. The engine only checks if the file claims compliance with PDF/A standard and does not perform any validation.

Example

This example will save a PDF file as a normal PDF first, then as PDF/A and verifies the claim.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Controls; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
using Leadtools.Pdf; 
using Leadtools.Svg; 
using Leadtools.WinForms; 
 
public static void IsPdfAExample() 
{ 
   // A normal non-PDFA file. 
   string sourceFile = Path.Combine(LEAD_VARS.ImagesDir, @"Leadtools.pdf"); 
   // The destination file 
   string targetFile = Path.Combine(LEAD_VARS.ImagesDir, "Out.pdf"); 
 
   File.Copy(sourceFile, targetFile); 
 
   // Check the original file, it should not be PDF/A 
   bool isPdfA = PDFFile.IsPdfA(targetFile); 
   Debug.Assert(!isPdfA); 
   // Check using PDFDocument class 
   using (var pdfDocument = new PDFDocument(targetFile)) 
   { 
      isPdfA = pdfDocument.IsPdfA; 
      Debug.Assert(!isPdfA); 
   } 
 
   // Convert it to PDF/A 
   PDFFile pdfFile = new PDFFile(targetFile); 
   pdfFile.ConvertToPDFA(null); 
   isPdfA = PDFFile.IsPdfA(targetFile); 
   Debug.Assert(isPdfA); 
   // Check using PDFDocument class 
   using (var pdfDocument = new PDFDocument(targetFile)) 
   { 
      isPdfA = pdfDocument.IsPdfA; 
      Debug.Assert(isPdfA); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Pdf 
Imports Leadtools.WinForms 
Imports Leadtools.Svg 
Imports Leadtools.ImageProcessing 
 
Public Shared Sub IsPdfAExample() 
   ' A normal non-PDFA file. 
   Dim sourceFile As String = Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf") 
   ' The destination file 
   Dim targetFile As String = Path.Combine(LEAD_VARS.ImagesDir, "Out.pdf") 
 
   File.Copy(sourceFile, targetFile) 
 
   ' Check the original file, it should Not be PDF/A 
   Dim isPdfA As Boolean = PDFFile.IsPdfA(targetFile) 
   Debug.Assert(Not isPdfA) 
   ' Check using PDFDocument class 
   Using pdfDocument As New PDFDocument(targetFile) 
      isPdfA = pdfDocument.IsPdfA 
      Debug.Assert(Not isPdfA) 
   End Using 
 
   ' Convert it to PDF/A 
   Dim pdfFileObj As New PDFFile(targetFile) 
   pdfFileObj.ConvertToPDFA(Nothing) 
   isPdfA = PDFFile.IsPdfA(targetFile) 
   Debug.Assert(isPdfA) 
   ' Check using PDFDocument class 
   Using pdfDocument As New PDFDocument(targetFile) 
      isPdfA = pdfDocument.IsPdfA 
      Debug.Assert(isPdfA) 
   End Using 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

Requirements

Target Platforms

Help Version 20.0.2019.3.11
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Leadtools.Pdf Assembly