PDFUseLegacyPDFSupport Property

Description

Gets and sets original or improved PDF handling when loading or querying PDF pages.

Property Type

Read-write property

Syntax

Visual Basic
Public Property PDFUseLegacyPDFSupport As Boolean

Return Type

True when original PDF load and query behavior is active.

False when improved load and query behavior is active for PDF pages.

Remarks

The default value is False.

When False, the following PDF image formats are accepted:

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.

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. Hidden, empty text objects are allowed) will return IX_Error_UnsupportedPDF.

Consider licensing PDF Xpress to support such PDF pages.

When True, the following PDF image formats are accepted:

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

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.) will return IX_Error_UnsupportedPDF.