You can load fonts like this:
TrueTypeFont ttf = new TTFParser().parse(fontfile);
then use it in different documents like this:
PDFont font = PDType0Font.load(document, ttf, true);
The "font" object can be used across pages in the same document.
don't forget to close "ttf" when done. But this is more a thing about
speed than about space. You should always update before asking
questions, we sometimes manage to improve the memory footprint.
Tilman
Am 02.08.2021 um 15:02 schrieb Christopher Schultz:
All,
Is it possible to re-use a PDFont object?
We have a situation where we are building many PDFs in a single
process and encountering OOMEs running out of heap space. We are using
a "large" (relatively speaking) TrueType font (ARIALUNI.TTF) whose
on-disk representation is 22 MiB.
We are loading the font into each document like this:
PDType0Font.load(document, inputStream)
This font is only loaded when we get a conversion error into the
standard built-in fonts (we are trying to create the smallest PDF
documents possible for several reasons).
Every OOME stack trace I've seen includes this PDType0Font.load()
call, so I was thinking that maybe we'd load the font a single time on
startup and re-use it for every document which needs it, but I don't
see any way in the API to do such a thing.
Are PDFont objects possible to re-use? Even theoretically? It would be
really great if we could do something like this:
static PDFont bigFont;
static {
bigFont = PDType0Font.load(null, inputStream);
}
public void generateDocument() {
...
PDFont localBigFont = document.addFont(bigFont);
PDPageContentStream content = ...;
content.setFont(lodalBigFont);
...
}
I'm currently using PDFBox v2.0.8 but upgrading to a later version
should not represent too much of a problem.
-chris
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