> -----Original Message-----
> From: Kanaras, Nikolaos [mailto:[email protected]] 
> Sent: Monday, July 13, 2009 10:24 AM
> To: Paulo Soares
> Subject: RE: ≤ and &#8804 and probably other similar tags 
> are invisible
> 
> Thank you very much for the prompt reply,
> 
> I added the following line in my css (the one that is declared in the
> xhtml file): body {font-family: "Arial"}
> And still nothing different happens. I'm still getting a space instead
> of the math symbol I expect.
> You meant something different when you said I should use an external
> font? Not by declaring it in the css? Can you please explain?
> 
> -----Original Message-----
> From: Paulo Soares [mailto:[email protected]] 
> Sent: Sunday, July 12, 2009 1:39 PM
> To: Kanaras, Nikolaos
> Subject: Re: ≤ and &#8804 and probably other similar tags are
> invisible
> 
> It's a font problem. The built-in fonts, like Helvetica, don't have
> those 
> mathematical symbols. Use an external font, like arial.ttf, that
> contains 
> those characters.
> 
> Paulo
> 
> ----- Original Message ----- 
> From: "Kanaras, Nikolaos" <[email protected]>
> To: "Paulo Soares" <[email protected]>
> Sent: Friday, July 10, 2009 3:28 PM
> Subject: &le; and &#8804 and probably other similar tags are invisible
> 
> 
> Hi Dear Mr. Soares,
> 
> I am trying to make PDFs out of HTMLs. I already read in the book that
> iText 
> is not the best tool for that and there are other tools like 
> ICEBrowser.
> 
> I am using the Flying Saucer open source project which uses 
> iText under
> the 
> hoods. I have very nice results with one exception. The resulting PDFs
> do 
> not show some mathematical symbols like &le; (less than or equal to).
> 
> To solve this, the first thing I did was to move out the Flying Saucer
> jars 
> (and calls) to isolate iText and see where the problem is. I wrote a
> very 
> simple html (attached) that contained a couple of paragraphs 
> and headers
> and 
> of course the symbol I want to see. Then I used HTMLWorker to 
> parse it 
> (attached) guessing that iText limitations on parsing HTML 
> would not be 
> visible in such a simple html. The result I got was the simplePdf.pdf 
> (attached). As you can see everything is fine except that the 
> le and ge 
> symbols are invisible.
> 
> So, I tried to debug believing that these tags was just not 
> supported. I
> 
> would add them and then I would be able to see them. But that was not
> the 
> case. What I show was that when the Document object was complete (all
> the 
> tags returned by HTMLWorker were added to the Document) the symbols I
> wanted 
> to see were there as they should be !!! And they were they 
> from the very
> 
> beginning.
> 
> So, now I guess that it is not a matter of support. It is rather a
> matter of 
> display. In fact I am lost here because the symbols are in the right
> place 
> but somehow are invisible when output in a pdf.
> 
> Could you please help me with that?
> 
> Many thanks in advance for your precious time.
> 
> With kind regards / Mit freundlichem Gruss
> Nikolaos Kanaras
> Siemens A.E.- Athens
> 
> Development, Innovations & Projects
> Asklipiou  Str. 30
> 
> GR-145 68 Krioneri Attikis / Athens / Greece
> 
> Tel.: +30 210 6265630
> 
> Fax.: +30 210 6265637
> 
> E-mail:
> [email protected]<mailto:[email protected]>
> 
> 
> 

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