If I run multiple threads that attempt to create a PDF and add some text
with an embedded Type1 font, an EndOfStreamException exception is throw in
RandomAccessFileOrArray. Sample code:
static void Main(string[] args)
{
Font font = FontFactory.GetFont("c:\\windows\\fonts\\KozGoProVI-Medium.otf",
BaseFont.IDENTITY_H,
BaseFont.EMBEDDED, 36f, Font.NORMAL, new BaseColor(0f, 0f, 0f));
List<Thread> threads = new List<Thread>();
threads.Add(new Thread(() => { MyProc("file1.pdf", font); }));
threads.Add(new Thread(() => { MyProc("file2.pdf", font); }));
threads.Add(new Thread(() => { MyProc("file3.pdf", font); }));
threads.Add(new Thread(() => { MyProc("file4.pdf", font); }));
threads.Add(new Thread(() => { MyProc("file5.pdf", font); }));
threads.Add(new Thread(() => { MyProc("file6.pdf", font); }));
threads.Add(new Thread(() => { MyProc("file7.pdf", font); }));
threads.Add(new Thread(() => { MyProc("file8.pdf", font); }));
foreach(Thread t in threads)
t.Start();
int numRunning = threads.Count;
while(numRunning > 0) {
int num = threads.Count;
foreach(Thread t in threads) {
if((t.ThreadState & System.Threading.ThreadState.Stopped) ==
System.Threading.ThreadState.Stopped)
num--;
}
numRunning = num;
}
}
private static void MyProc(string fileName, Font font)
{
System.IO.FileStream fs = new FileStream(fileName, FileMode.Create);
Document document = new Document(PageSize.LETTER, 36, 36, 36, 36);
PdfWriter writer = PdfWriter.GetInstance(document, fs);
document.Open();
document.Add(new Paragraph("Hello World!", font));
document.Close();
writer.Close();
fs.Close();
}
If I do exactly the same thing, but use a non-Type1 font, e.g.,
Font font = FontFactory.GetFont("c:\\windows\\fonts\\ArialUni.ttf",
BaseFont.IDENTITY_H, BaseFont.EMBEDDED,
36f, Font.NORMAL, new BaseColor(0f, 0f, 0f));
then everything is OK. Also OK if I use the Type1 font, but only run one thread.
- Eric de Beus
eric.deb...@xerox.com<mailto:eric.deb...@xerox.com>
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