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Topic: PDF corrupted when sent to IE via CGI
Conf: (P-PDF) Developers, Msg: 123431
From: TheBentinelDotCom
Date: 12/7/2004 08:28 AM

I am using C++ to write a CGI backend to a web site producing PDF reports. (Because that's what I'm told to do, not because it seems like the best approach)

The reports write to a PDF file on the o/s, then I intend to dump that file to the output stream back to the browser, but it isn't working. The content-type seems to get there (since Adobe is fired up), but the actual data is causing Adobe to say "There was a problem reading this document (114)". After I click OK, there's a blank page staring at me with the Adobe tabs and menus all around it. If I double-click the same file directly, it comes up in Acrobat just fine.

Does anyone see anything here that I'm obviously doing wrong? (I tried setting the buffer size to 1-byte, but it didn't help)

Thanks for your help!

Dave

Here's the code I'm using:

void dumpFile(const char* filename)
{
ifstream file(filename, ios::in | ios::binary);

if (file) {
while (!file.eof()) {
char buf[1024];

file.read(buf, sizeof(buf));
int count = file.gcount();
if (count) {
cout.write(buf, count);
} else {
break;
}
}

cout.flush();
}
}

cout << "content-type: application/pdf\n";
cout << "content-disposition: inline; filename=test.pdf\n";
cout << "\n";
dumpFile("C:\\pdf\\test.pdf");

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