If you look at a Type 1 font with CharacterMap, you will see that it has
many more than 255 characters. These characters can be accessed by using
a Differences entry in the Font Dictionary to remap one of the 255 to
the desired character. Characters like 'lessequal' can be reached in
this way. See the PDF Reference, section 9.
Chinese (Asian fonts in general) requires Type 0 fonts.
Marc
On 1/30/2019 5:56 PM, Christopher Schultz wrote:
Hello,
We are using PDFBox to generate PDFs in a very simple way and only
including fonts available from the PDType1Font class (e.g.
PDType1Font.HELVETICA). The PDFs we are generating are really only
including a few title/subtitles, text, and bulleted/numbered lists.
Everything is fine when we use what is probably in the standard Latin
alphabet, and we've had some troubles with special characters that
don't fit in there such as ≥ and ≤. We've dealt with that by simply
replacing "≤" with "<=" and so on, but we're starting to use languages
that don't use Latin script and so we can no longer replace out way
out of the problem.
For example, I need to be able to put Chinese characters into a PDF we
generate. So let's take the text "中國" which is just the word "China"
in Traditional Chinese script.
First, how can I find out that the character isn't going to fit into
the font that I'm currently using? Should I do it for every character
we try to put into the page, or should we just catch exceptions when
we try to write the text to the page and then scan at that point? I'm
trying to avoid writing hideously inefficient code to handle these
situations.
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