PDFTextAlpha property (Main Control)

Visual Basic example
Visual C++ 4.0 example

Syntax long PDFTextAlpha

Overview: Refer to Implementing PDF Plug in Features.

Remarks

(Persistent property, available at design time) Sets the flag that indicates what type of font anti-aliasing that LEADTOOLS uses when loading PDF, PS or EPS files.

Value	Meaning
1	Do not use font anti-aliasing.
2	Use 2-bit font anti-aliasing.
4	Use 4-bit font anti-aliasing.

The default setting is 4.

Aliasing is the effect on all pixel devices where diagonal and curved lines have a zigzag appearance. As pixels get larger, this effect becomes more noticeable. Anti-aliasing refers to methods designed to decrease or eliminate this effect. This is done by shading the pixels along the borders of the affected lines.

Font anti-aliasing slows down the drawing of the resulting bitmap.

Font anti-aliasing can only be used if PDFDisplayDepth property is set to 8 or greater.