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LoadFromUri Method

Summary

Loads a document from existing data stored in a remote URL.

Syntax
C#
VB
C++
Java
public static LEADDocument LoadFromUri( 
   Uri uri, 
   LoadDocumentOptions options 
) 
Public Shared Function LoadFromUri( 
   ByVal uri As System.Uri, 
   ByVal options As LoadDocumentOptions 
) As LEADDocument 
public:  
   static LEADDocument^ LoadFromUri( 
      System::Uri^ uri, 
      LoadDocumentOptions^ options 
   ) 
public static Document loadFromUri(URI uri, LoadDocumentOptions options) 

Parameters

uri

Path to the URL containing the original document data. This value cannot be null.

options

Options to use when loading the document. This value cannot be null.

Return Value

The newly created document object.

Remarks

This method might use the cache and will throw an exception if neither LoadDocumentOptions.Cache nor Cache was setup with a valid cache object if certain options are used.

Note that uri can point to a document stored in HTTP, HTTPS, FTP, or Disk file (using the file protocol).

LoadFromFile, LoadFromUri, LoadFromUriAsync and LoadFromStream creates a LEADDocument class from any supported image or document file format stored in a disk file, remote URL or stream. The returned object can then be used to retrieve any page as image or SVG, to obtain the text using SVG or OCR, use the annotations or the document structure such as links and bookmarks.

After the document is obtained, InternalObject will be to the internal LEADTOOLS object used with the document.

Refer to Loading Using LEADTOOLS Document Library for detailed information on how to use this method and the various options used.

Example
C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Document.Writer; 
using Leadtools.Svg; 
using LeadtoolsExamples.Common; 
using Leadtools.Document; 
using Leadtools.Caching; 
using Leadtools.Annotations.Engine; 
using Leadtools.Ocr; 
using Leadtools.Barcode; 
using Leadtools.Document.Converter; 
 
 
public static void DocumentFactoryLoadFromUriExample() 
{ 
   var options = new LoadDocumentOptions(); 
   using (var document = DocumentFactory.LoadFromUri(new Uri("http://demo.leadtools.com/images/pdf/leadtools.pdf"), options)) 
   { 
      PrintOutDocumentInfo(document); 
   } 
} 
 
 
public static void PrintOutDocumentInfo(LEADDocument document) 
{ 
   Console.WriteLine("General"); 
   Console.WriteLine("  DocumentId:" + document.DocumentId); 
   if (document.Uri != null) 
      Console.WriteLine("  Uri:" + document.Uri); 
   Console.WriteLine("  Name:" + document.Name); 
   Console.WriteLine("  CacheStatus:" + document.CacheStatus); 
   Console.WriteLine("  LastCacheSyncTime:" + document.LastCacheSyncTime); 
   Console.WriteLine("  IsReadOnly:" + document.IsReadOnly); 
   Console.WriteLine("  IsLocal:" + document.IsLocal); 
   Console.WriteLine("  MimeType:" + document.MimeType); 
   Console.WriteLine("  IsEncrypted:" + document.IsEncrypted); 
   Console.WriteLine("  IsDecrypted:" + document.IsDecrypted); 
   Console.WriteLine("  UserData:" + document.UserData); 
   Console.WriteLine("Cache"); 
   Console.WriteLine("  HasCache:" + document.HasCache); 
   Console.WriteLine("  AutoDeleteFromCache:" + document.AutoDeleteFromCache); 
   Console.WriteLine("Metadata"); 
   foreach (var item in document.Metadata) 
      Console.WriteLine("  {0} {1}", item.Key, item.Value); 
 
   Console.WriteLine("Documents"); 
   Console.WriteLine("  Count:" + document.Documents.Count); 
   foreach (var childDocument in document.Documents) 
   { 
      Console.WriteLine("    Name:" + childDocument.Name); 
   } 
 
   Console.WriteLine("Pages"); 
   Console.WriteLine("  Count:" + document.Pages.Count); 
 
   for (var pageNumber = 1; pageNumber <= document.Pages.Count; pageNumber++) 
   { 
      var page = document.Pages[pageNumber - 1]; 
 
      Console.WriteLine("    PageNumber:" + pageNumber); 
      Console.WriteLine("      OriginalPageNumber:" + page.OriginalPageNumber); 
      Console.WriteLine("      OriginalDocumentName:" + page.Document.Name); 
      Console.WriteLine("      Size:{0}", page.Size); 
   } 
 
   Console.WriteLine("--------"); 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Document.Writer 
Imports Leadtools.Svg 
Imports Leadtools.Document 
Imports Leadtools.Caching 
Imports Leadtools.Annotations.Engine 
Imports Leadtools.Barcode 
Imports Leadtools.Ocr 
Imports LeadtoolsDocumentExamples.LeadtoolsExamples.Common 
Imports Leadtools.Document.Converter 
 
Public Shared Sub DocumentFactoryLoadFromUriExample() 
   Dim options As New LoadDocumentOptions() 
   Using document As Leadtools.Document.LEADDocument = DocumentFactory.LoadFromUri(New Uri("http://localhost/Leadtools.pdf"), options) 
      PrintOutDocumentInfo(document) 
   End Using 
End Sub 
 
Public Shared Sub PrintOutDocumentInfo(ByVal document As LEADDocument) 
   Console.WriteLine("General") 
   Console.WriteLine("  DocumentId:" + document.DocumentId) 
   If Not IsNothing(document.Uri) Then 
      Console.WriteLine("  Uri:" + document.Uri.ToString()) 
   Else 
      Console.WriteLine("  Name:" + document.Name) 
   End If 
 
   Console.WriteLine("  CacheStatus:" + document.CacheStatus.ToString()) 
   Console.WriteLine("  LastCacheSyncTime:" + document.LastCacheSyncTime.ToString()) 
   Console.WriteLine("  IsReadOnly:" + document.IsReadOnly.ToString()) 
   Console.WriteLine("  IsLocal:" + document.IsLocal.ToString()) 
   Console.WriteLine("  MimeType:" + document.MimeType) 
   Console.WriteLine("  IsEncrypted:" + document.IsEncrypted.ToString()) 
   Console.WriteLine("  IsDecrypted:" + document.IsDecrypted.ToString()) 
   If Not IsNothing(document.UserData) Then 
      Console.WriteLine("  UserData:" + document.UserData.ToString()) 
   End If 
   Console.WriteLine("Cache") 
   Console.WriteLine("  HasCache:" + document.HasCache.ToString()) 
   Console.WriteLine("  AutoDeleteFromCache:" + document.AutoDeleteFromCache.ToString()) 
   Console.WriteLine("Metadata") 
   For Each item As KeyValuePair(Of String, String) In document.Metadata 
      Console.WriteLine("  {0} {1}", item.Key, item.Value) 
   Next 
 
   Console.WriteLine("Documents") 
   Console.WriteLine("  Count:" + document.Documents.Count.ToString()) 
   For Each childDocument As LEADDocument In document.Documents 
      Console.WriteLine("    Name:" + childDocument.Name) 
   Next 
 
   Console.WriteLine("Pages") 
   Console.WriteLine("  Count:" + document.Pages.Count.ToString()) 
 
   For pageNumber As Integer = 1 To document.Pages.Count 
      Dim page As Leadtools.Document.DocumentPage = document.Pages(pageNumber - 1) 
 
      Console.WriteLine("    PageNumber:" + pageNumber.ToString()) 
      Console.WriteLine("      OriginalPageNumber:" + page.OriginalPageNumber.ToString()) 
      Console.WriteLine("      OriginalDocumentName:" + page.Document.Name) 
      Console.WriteLine("      Size:{0}", page.Size.ToString()) 
   Next 
 
   Console.WriteLine("--------") 
End Sub 

Requirements

Target Platforms

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