FreeTextAnnotation.setDefaultAppearance API

Aspose.PDF Product Family
1

Hi Aspose,


I have the following code:

DefaultAppearance appearance = new DefaultAppearance();
appearance.setTextColor(annoInfo.getColor());
appearance.setFontName(fontName);
appearance.setFontSize(fontSize);

FreeTextAnnotation anno = new FreeTextAnnotation(page, rect, appearance);

It works fine. The question is how can I update the DefaultAppearance? I see that there is setDefaultAppearance API but it accepts a String instead of a DefaultAppearance so I don’t know how to update it.

What I want is to update text color, font name, font size like in the above. Thank you.

Best Regards,
Tuyen
2

Hi Tuyen,


Thanks for your inquiry. DefaultAppearance string contains sequence of graphics and state operators which defines text properties such as color and text size. 

FreeTextAnnotation.setDefaultAppearance(“1 1 1 rg /Times-Roman 16 Tf”);
  • rg is operator to set color of nonstroking operators (this defines text color in this case)
  • 1 1 1 is color components (reg, green, blue, value range is 0…1). Thus, 1 1 1 defines white color.
  • Tf is set font operator. This operator selects font used for text.
  • First operand is key of font resource and second of font size. second operand is size of text. This, /Times-Roman 16 Tf means that Time-roman font of size 16 will be used.
If you still face issue or need further assistance, please feel free to contact us.

Best Regards,