Re: [iText-questions] How to extract the properties of an AcroField

Mon, 07 Aug 2006 12:08:31 -0700

At 01:39 PM 8/7/2006, Abhishek Srivastava wrote:
The properties which I want to extract are
 
textfont
textcolor
textsize
text alignment

        Is this a single line or multi-line field?   Is this a rich text field?


I printed the properties of two acrofields and the output was
 
1.  /FT -- /Tx
/RV -- <?xml version="1.0"?><body xmlns=" http://www.w3.org/1999/xhtml" xmlns:xfa

        An RV in your field means that it is a RICH TEXT field and as such many have text in MULTIPLE fonts, colors, etc. 


2. /Rect -- System.Collections.ArrayList
/AP -- Dictionary of type:

        For a non-rich text field - the styling info is here..


I can see that tokenizing /DA will give me font, font size and font-weight. however how about text alignment?

        /DA is the DEFAULT APPERANCE.  You need also to parse the actual /AP dictionaries to find the CURRENT appearance.   If the font is embedded and not of the Base14, then you have even more work ahead of you.


For field 1, the text alignment is present in /RV tag, but this tag doesn't appear for all other fields. For fields which don't have /RV tag, how to extract text alignment?

        It's a subset of HTML.  Documentation in the PDF Reference.


The second risk which I see is that I have to do string tokenization to extract the values of font name, font-weight and font size. However this may be error prone. Can I assme that the format of /DA will always be <font-name>,<font-weight> <font-size>?

        Nope.

        Again, documentation in the PDF Reference.

Leonard
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