DocumentFactory Class

C#
Visual Basic
Objective-C
Java
C++

public static class DocumentFactory

'Declaration

Public MustInherit NotInheritable Class DocumentFactory

'Usage

Dim instance As DocumentFactory

public final class DocumentFactory

public ref class DocumentFactory abstract sealed

The main class used for the LEADTOOLS Documents class library is Document. This class abstracts the internal implementation to provide unified properties and methods to access the internal document. Users can create a new document or load existing documents from disk file or a URL.

Documents cannot be created directly, instead, use the static DocumentFactory methods to obtain a Document instance as follows:

Member	Description
LoadFromFile	Loads a document from existing data stored in a disk file
LoadFromUri	Loads a document from existing data stored in a remote URL
LoadFromUriAsync	Loads a document asynchronously from an existing data stored in remote URL
LoadFromStream	Loads a document from existing data stored in a stream
RasterCodecsTemplate	Global template used when loading and saving raster and SVG images

When combined with LEADTOOLS File Cache, the DocumentFactory provide the following extra functionality:

Member	Description
Cache	The global LEADTOOLS File Cache object responsible for managing cache items and expiration policies. The cache can be stored in this value (if the system requires the use of a single global cache) or a new instance is passed directly to the various uploading, loading and saving methods to use distinct or shared caches with each document.
Create	Creates a new empty document
LoadFromCache	Loads a previously saved document from the cache
BeginUpload, UploadDocument and AbortUploadDocument	Provides support for uploading a document to the cache system used by the factory

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms.DocumentWriters
Imports Leadtools.Svg
Imports Leadtools.Documents
Imports Leadtools.Caching
Imports Leadtools.Annotations.Core
Imports Leadtools.Barcode
Imports Leadtools.Forms.Ocr

<TestMethod()> _
Public Sub DocumentFactoryExample()
   Dim options As New LoadDocumentOptions()
   options.UseCache = False
   Using document As Leadtools.Documents.Document = DocumentFactory.LoadFromFile(Path.Combine(ImagesPath.Path, "Leadtools.pdf"), options)
      PrintOutDocumentInfo(document)
   End Using
End Sub

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms.DocumentWriters;
using Leadtools.Svg;
using Leadtools.Documents;
using Leadtools.Caching;
using Leadtools.Annotations.Core;
using Leadtools.Forms.Ocr;
using Leadtools.Barcode;

[TestMethod]
public void DocumentFactoryExample()
{
   var options = new LoadDocumentOptions();
   options.UseCache = false;
   using (var document = DocumentFactory.LoadFromFile(Path.Combine(ImagesPath.Path, "Leadtools.pdf"), options))
   {
      PrintOutDocumentInfo(document);
   }
}

Target Platforms

Reference

DocumentFactory Members
Leadtools.Documents Namespace
Documents Library Features
Loading Using LEADTOOLS Documents Library
Documents Library Coordinate System
Loading Encrypted Files Using the Documents Library
Parsing Text with the Documents Library
Barcode processing with the Documents Library
Using LEADTOOLS Document Viewer
Using LEADTOOLS Document Converters