On Sep 23, 2008, at 11:49 AM, Laura Cobos wrote:
> I need to know if is it possible to extract with itext the stream
> object of a Type 3 font and the stream object of a XForm (I suppose
> the same method would be correct for both). I know how scan the
> PdfDictionary keys but not the object where is the stream....
>
I assume you mean a Form XObject...
Yes, you can certainly extract their streams and process them. You
just need to get the correct parent dictionaries...
Also, don't forget about Patterns and Annotation Appearances...they
are also content streams...
> Currently I can rewrite de pdf if it use Type 1 fonts, but in some
> cases the letters are not identical to the original letters. It
> seems like some of the "copied" letters had more thickness, but only
> a bit more, so if you compare the pdf it seems like the copied
> letters would be shifted a little.
> Is it possible that even I have made the original pdf with a font
> file store in my computer and I try to rewrite it reading the
> content stream and using the same font file and writing the same
> text, some characteristics of the font like Descent could change
> when you create the pdf instead of using the Descent in the .afm
> file...?
>
You MUST use the EXACT SAME font data as found in the original
PDF...Substitution of any fashion will create a non-equivalent document.
Also, how do you plan to deal with TrueType and OpenType fonts?
What about CID fonts?
Leonard
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