[Question] How to set the Font in a FreeText annotation ? about pdf-writer HOT 4 CLOSED

I have no idea. seriously.
I'm not sure that you can actually use Tf in such a context.

Specifically i don't see a resources dictionary reference here that you coud hang a font definition on.
If you would, i would tell you to simply follow AbstractContentContext::WriteText and figure out what you need from there (https://github.com/galkahana/PDF-Writer/blob/master/PDFWriter/AbstractContentContext.cpp#L1409)

but what will you do with the font that you get? i see no resources dictionary here.

donnow.

from pdf-writer.

I use Tf to set the font name and font size for displaying the contents (text) in a FreeText annotation.

In the pdf spec: page 679 in (pdf_reference_1-7.pdf)

The default appearance string (DA) contains any graphics state or text state oper- ators needed to establish the graphics state parameters, such as text size and color, for displaying the field’s variable text. Only operators that are allowed within text objects may occur in this string (see Figure 4.1 on page 197). At a minimum, the string must include a Tf (text font) operator along with its two operands, font and size. The specified font value must match a resource name in the Font entry of the default resource dictionary (referenced from the DR entry of the interactive form dictionary; see Table 8.67). A zero value for size means that the font is to be auto- sized: its size is computed as a function of the height of the annotation rectangle.

Please see the screenshot of the example pdf generated by Adobe Acrobat Pro: I highlighted the DA entry in a FreeText annotation and the associated font entries in the Font dictionaries.

from pdf-writer.

well, that's true for form. but what about text free annotation?

from pdf-writer.

DA is a required field in FreeText annotation to set font name, size, and text color.
In the pdf spec: page 624 in (pdf_reference_1-7.pdf)

from pdf-writer.