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Tilman,
On 5/16/19 12:17, Tilman Hausherr wrote:
> PDFDebugger.
>
> Look at the resources. If the same font occurs several times, then
> you did something wrong. It should occur only once in a document.
Okay, it looks like it is indeed showing multiple times. Here's what I
can see in the document:
> Page 1
> Contents
> MediaBox
> Parent
> Resources (1) [8 0 R]
> Font (12) [15 0 R]
F1 (6) [19 0 R] /T:Font /S:Type0 (AAAGXI+ArialUnicodeMS)
F10 (4) [28 0 R] /T:Font /S:Type1 (Times-Italic)
F11 (6) [29 0 R] /T:Font /S:Type0 (AAABJI+ArialUnicodeMS)
(9 more listed: 3 total type 1 fonts, 9 total type 0 fonts including
those above)
The font AAA???I+ArialUnicodeMS shows up for all of the "type 0" entries
.
> Page 2
> [...]
> Resources
> Font (3)
F1 (4) [20 0 R] /T:Font /S:Type1 (Times-Roman)
F2 (6) [31 0 R] /T:Font /S:Type0 (AAAYGI+ArialUnicodeMS)
F3 (4) [28 0 R] /T:Font /S:Type1 (Times-Italic)
> Page 3
> [...]
> Resources
> Font (2)
F1 (4) [20 0 R] /T:Font /S:Type1 (Times-Roman)
F2 (4) [28 0 R] /T:Font /S:Type1 (Times-Italic)
> Page 4
> [...]
> Resources
> Font (2)
F1 (4) [20 0 R] /T:Font /S:Type1 (Times-Roman)
F2 (4) [28 0 R] /T:Font /S:Type1 (Times-Italic)
So perhaps I am even using the built-in fonts incorrectly if they are
being mentioned on every page. Or is each page which uses a font
expected to have its own Font entry in the resources?
Does this mean I am "adding" the font too many times somehow?
My code looks like this:
private void writeWrappedText(PDFont font, int fontSize, String
text, Color color)
throws IOException
{
int paragraphWidth = 500;
boolean indented = false;
String strippedText = sanitizeString(text);
int start = 0;
int end = 0;
int wrappedLineCnt = 1;
if(!isAnsiEncoding(strippedText)) {
if(logger.isDebugEnabled())
logger.debug("Text contains non-ansi characters: " +
text);
font = getFullUnicodeFont();
}
for ( int i : getPossibleWrapPoints(strippedText) ) {
float width =
font.getStringWidth(strippedText.substring(start,i)) / 1000 * fontSize;
if ( start < end && width > paragraphWidth ) {
if (wrappedLineCnt == 1)
setOffsetX(getOffsetXforMargin());
printSanitizedLine(font, fontSize,
strippedText.substring(start,end), indented ? _pageIndent : 0, color);
wrappedLineCnt++;
start = end;
}
end = i;
}
if (wrappedLineCnt == 1)
setOffsetX(getOffsetXforMargin());
// Last piece of text
printSanitizedLine(font, fontSize,
strippedText.substring(start), indented ? _pageIndent : 0, color);
}
The getFullUnicodeFont method is:
private PDFont getFullUnicodeFont() {
if(null == _doc)
throw new IllegalStateException("Document has not yet been
created; cannot load a new font");
InputStream in = null;
try {
String fullUnicodeFontFile = "/resources/fonts/ARIALUNI.TTF"
;
in = getClass().getResourceAsStream(fullUnicodeFontFile);
if(null == in)
throw new MissingResourceException("Cannot load font
file " + fullUnicodeFontFile, this.getClass().getName(),
fullUnicodeFontFile);
PDFont font = PDType0Font.load(_doc, in);
return font;
} catch (IOException ioe) {
throw new RuntimeException("Cannot load font", ioe);
}
}
Re-reading that code, it's obvious that I should be storing the font
once loaded and re-using it. I'm guessing that
PDType0Font.load(PDDocument,InputStream) doesn't recognize that the
font has already been loaded and just adds it a second (or third,
etc.) time. Can anyone confirm that?
I know that my code isn't the best in terms of only choosing to render
certain glyphs in this "full" font. I am working to improve that, and
I know there is example code for choosing the "best" font for each
character in a string, which I'll be reviewing separately.
Thanks,
- -chris
> Am 16.05.2019 um 18:09 schrieb Christopher Schultz: All,
>
> We have a process that generates PDF documents usually using the
> default Type-1 built-in fonts, so the documents do not embed the
> font information.
>
> We recently added the ability for the documents to include font
> information if certain glyphs were not available in the default
> font(s) and, as expected, the file sizes end up being bigger when
> that happens.
>
> What is the best tool to look at a particular document to see why
> it ended up being so large? I'm not sure I can visually tell by
> looking at the document which character triggered the inclusion of
> the font, and then why that font was used for what I can only
> assume was a lot of text. By inspecting the file, I'm sure I can
> improve my code so that we have fewer uses of this additional font
> and therefore keep the file sizes to a minimum.
>
> Thanks, -chris
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