PDFExport fonts. How they are detected, difference between bold and italic.

Question

Hi,
i am experiencing issues with PDFExport mainly because i don't understand how the engine detects fonts in the original document.
First i will explain my issue:
PDFExport is used on linux machine environment.
Copyright reasons prevents me from using windows fonts for PDFExport. I downloaded some open source fonts, most of time they are working fine. the issues that i have are with the variations the fonts. italicized and bold.
Lets take an example of a .doc file. the file contains Hebrew characters some of them are bolded some italicized and some are regular. the font that .doc used is a windows font called David.
When i use PDFExport with the original David fonts everything works fine and converted correctly to PDF. Since i cannot use windows fonts i resorted to using the Open Source fonts, they too have similar in style to David. they have bold version, italicized version and regular version.
When i use the open source fonts the detection of the font is incorrect. the entire document becomes italic. when i remove the italic version of the font everything is bold. and when i remove the bold version everything becomes regular. -- i am missing the bold and italic styles when they are used in the document.
(note that the original document can use any font it wants not restricted to the Copyright issue)
if i understood how the detection worked, i could modified the open source fonts that i have so that it will detect correctly all the different style (bold and italicized ) correctly.
my first question:
How can i use the Open source fonts and also not lose the bold and italicized styles?
my second question:
2. Is there a way to recieve via the API which fonts the engine looked for and didn't find? it can help me to better understand which fonts i need. and may be look for them and bring them manually.
sometimes even when i used the entire windows fonts folder still the fonts where missing or incorrect. (in the resulted converted PDF 'squares' instead of characters). an API like this may help me look for the missing fonts.
my third question:
is there a general guide or Standard which fonts to use. i wish to use the minimum number of fonts which will get the job done. i.e characters will be visible and not squares, styles (bold and italicized) should not be lost.
my forth question:
How do the engine choose which font to use?

Answer 1

These are very deep technical questions and I assume it will be difficult to find anyone who knows answers on this forum.
You will need to speak with Outside In people (you could also try other conversion component such as OpenOfficeConversion - see http://docs.oracle.com/cd/E23943_01/doc.1111/e10800/c03_pdfi_all.htm#IBRAG238). Contacts to OIT are available at Oracle Outside In Technology, or try to create a SR via Metalink.