UseLegacyPDFSupport Property

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Property UseLegacyPDFSupport As Boolean

'Usage
 
Dim instance As LoadOptionsPdf
Dim value As Boolean
 
instance.UseLegacyPDFSupport = value
 
value = instance.UseLegacyPDFSupport

public bool UseLegacyPDFSupport {get; set;}

public: __property bool get_UseLegacyPDFSupport();
public: __property void set_UseLegacyPDFSupport( 
   bool value
);

public:
property bool UseLegacyPDFSupport {
   bool get();
   void set (    bool value);
}

This property is set to false by default.

When false, the more current PDF loading engine will be used which accepts the following formats:

1-bit ASCIIHex, ASCII85, CCITTFax (G3-1D, G3-2D, G4), Flate, JBIG2, JPEG, JPEG2000, LZW, RLE and uncompressed image data. Single and multiple page.

4-, 8-, 24- and 32-bit ASCIIHex, ASCII85, Flate, LZW, RLE, JPEG, JPEG2000 and uncompressed image data. Single and multiple page.

When true, the legacy PDF Loading engine will be used and the format support will be limited to the following:

1, 8 and 24-bit uncompressed image streams. Single and multiple page.

8, 24-bit and CMYK JPEG compressed image streams. Single and multiple page.

1 bit G3-1D, G3-2D, G4 and JBIG2 compressed image streams. Single and multiple page.

Only Image-only PDF pages are supported. Attempting to load a PDF page with more than a single image object (i.e. page also contains hidden or visible text objects, multiple images, vector graphics, etc. Invisible text objects that are also empty are tolerated.) will throw an ImagXpressException with ErrorUnsupportedPDF. Consider using PDF Xpress to support such PDF pages.

Setting this proprty to true is recommended for compatability reasons only. This legacy option has been deprecated since ImagXpress 13 and PDF support is limted when enabling this option.

Reference

LoadOptionsPdf Class
LoadOptionsPdf Members