问题
I'm having 2 issues when trying to print a pdf silently in C# using adobe acrobat. I'm printing the pdfs using Process.Start().
The first issue is that I cannot launch Adobe Acrobat without specifying the full path to the executable. I assume it doesn't add it to your path when you install it. Is there an easy way to launch the newest version of acrobat on a machine without specifying full path names? I'm worried that the client is going to do an update and break my code that launches this. I'm also concerned with them installing this on machines with different versions of windows (install paths are different in 64 bit environment vs. 32 bit).
My second problem is the fact that whenever I launch acrobat and print it still leaves the acrobat window open. I thought that the command line parameters I was using would suppress all of this but apparently not.
I'm trying to launch adobe acrobat from the command line with the following syntax:
C:\Program Files (x86)\Adobe\Reader 10.0\Reader>AcroRd32.exe /t "Label.pdf" "HP4000" "HP LaserJet 4100 Series PCL6" "out.pdf"
It prints out fine but it still leaves the acrobat window up. Is there any other solution besides going out and killing the process programmatically?
回答1:
I ended up bailing on Adobe Acrobat here and going with FoxIt Reader (Free pdf reader) to do my pdf printing. This is the code I'm using to print via FoxIt in C#:
Process pdfProcess = new Process();
pdfProcess.StartInfo.FileName = @"C:\Program Files (x86)\Foxit Software\Foxit Reader\Foxit Reader.exe";
pdfProcess.StartInfo.Arguments = string.Format(@"-p {0}", fileNameToSave);
pdfProcess.Start();
The above code prints to the default printer but there are command line parameters you can use to specify file and printer. You can use the following syntax:
Foxit Reader.exe -t "pdf filename" "printer name"
Update:
Apparently earlier versions of acrobat do not have the problem outlined above either. If you use a much older version (4.x or something similar) it does not exhibit this problem.
Some printers do support native pdf printing as well so it's possible to send the raw pdf data to the printer and it might print it. See https://support.microsoft.com/en-us/kb/322091 for sending raw data to the printer.
Update 2
In later versions of our software we ended up using a paid product:
http://www.pdfprinting.net/
回答2:
Nick's answer looked good to me, so I translated it to c#. It works!
using System.Diagnostics;
namespace Whatever
{
static class pdfPrint
{
public static void pdfTest(string pdfFileName)
{
string processFilename = Microsoft.Win32.Registry.LocalMachine
.OpenSubKey("Software")
.OpenSubKey("Microsoft")
.OpenSubKey("Windows")
.OpenSubKey("CurrentVersion")
.OpenSubKey("App Paths")
.OpenSubKey("AcroRd32.exe")
.GetValue(String.Empty).ToString();
ProcessStartInfo info = new ProcessStartInfo();
info.Verb = "print";
info.FileName = processFilename;
info.Arguments = String.Format("/p /h {0}", pdfFileName);
info.CreateNoWindow = true;
info.WindowStyle = ProcessWindowStyle.Hidden;
//(It won't be hidden anyway... thanks Adobe!)
info.UseShellExecute = false;
Process p = Process.Start(info);
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
int counter = 0;
while (!p.HasExited)
{
System.Threading.Thread.Sleep(1000);
counter += 1;
if (counter == 5) break;
}
if (!p.HasExited)
{
p.CloseMainWindow();
p.Kill();
}
}
}
}
回答3:
The following is tested in both Acrobat Reader 8.1.3 and Acrobat Pro 11.0.06, and the following functionality is confirmed:
- Locates the default Acrobat executable on the system
- Sends the file to the local printer
- Closes Acrobat, regardless of version
string applicationPath;
var printApplicationRegistryPaths = new[]
{
@"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\Acrobat.exe",
@"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\AcroRD32.exe"
};
foreach (var printApplicationRegistryPath in printApplicationRegistryPaths)
{
using (var regKeyAppRoot = Registry.LocalMachine.OpenSubKey(printApplicationRegistryPath))
{
if (regKeyAppRoot == null)
{
continue;
}
applicationPath = (string)regKeyAppRoot.GetValue(null);
if (!string.IsNullOrEmpty(applicationPath))
{
return applicationPath;
}
}
}
// Print to Acrobat
const string flagNoSplashScreen = "/s";
const string flagOpenMinimized = "/h";
var flagPrintFileToPrinter = string.Format("/t \"{0}\" \"{1}\"", printFileName, printerName);
var args = string.Format("{0} {1} {2}", flagNoSplashScreen, flagOpenMinimized, flagPrintFileToPrinter);
var startInfo = new ProcessStartInfo
{
FileName = printApplicationPath,
Arguments = args,
CreateNoWindow = true,
ErrorDialog = false,
UseShellExecute = false,
WindowStyle = ProcessWindowStyle.Hidden
};
var process = Process.Start(startInfo);
// Close Acrobat regardless of version
if (process != null)
{
process.WaitForInputIdle();
process.CloseMainWindow();
}
回答4:
I've tried both Adobe Reader and Foxit without luck. The current versions of both are very fond of popping up windows and leaving processes running. Ended up using Sumatra PDF which is very unobtrusive. Here's the code I use. Not a trace of any windows and process exits nicely when it's done printing.
public static void SumatraPrint(string pdfFile, string printer)
{
var exePath = Registry.LocalMachine.OpenSubKey(
@"SOFTWARE\Microsoft\Windows\CurrentVersion" +
@"\App Paths\SumatraPDF.exe").GetValue("").ToString();
var args = $"-print-to \"{printer}\" {pdfFile}";
var process = Process.Start(exePath, args);
process.WaitForExit();
}
回答5:
got another solution .. its combination of other snippets from stackOverflow. When I call CloseMainWindow, and then call Kill .. adobe closes down
Dim info As New ProcessStartInfo()
info.Verb = "print"
info.FileName = Microsoft.Win32.Registry.LocalMachine.OpenSubKey("Software").OpenSubKey("Microsoft").OpenSubKey("Windows").OpenSubKey("CurrentVersion").OpenSubKey("App Paths").OpenSubKey("AcroRd32.exe").GetValue(String.Empty).ToString()
info.Arguments = String.Format("/p /h {0}", "c:\log\test.pdf")
info.CreateNoWindow = True
info.WindowStyle = ProcessWindowStyle.Hidden
info.UseShellExecute = False
Dim p As Process = Process.Start(info)
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
Dim counter As Integer = 0
Do Until p.HasExited
System.Threading.Thread.Sleep(1000)
counter += 1
If counter = 5 Then
Exit Do
End If
Loop
If p.HasExited = False Then
p.CloseMainWindow()
p.Kill()
End If
回答6:
Problem 1
You may be able to work your way around the registry. In HKEY_CLASSES_ROOT\.pdf\PersistentHandler\(Default) you should find a CLSID that points to a value found in one of two places. Either the CLSID folder of the same key, or (for 64 bit systems) one step down in Wow6432Node\CLSID then in that CLSID's key.
Within that key you can look for LocalServer32 and find the default string value pointing to the current exe path.
I'm not 100% on any of this, but seems plausible (though you're going to have to verify on multiple environments to confirm that in-fact locates the process you're looking for).
(Here are the docs on registry keys involved regarding PersistentHandlers)
Problem 2
Probably using the CreateNoWindow of the Process StartInfo.
Process p = new Process();
p.StartInfo.FileName = @"C:\Program Files (x86)\Adobe\Reader 10.0\Reader\AcroRd32.exe";
p.StartInfo.Arguments = "/t \"Label.pdf\" \"HP4000\" \"HP LaserJet 4100 Series PCL6\" \"out.pdf\"";
p.CreateNoWindow = true;
p.Start();
p.WaitForExit();
(only a guess however, but I'm sure a little testing will prove it to work/not work)
回答7:
If you use Acrobat reader 4.0 you can do things like this: "C:\Program Files\Adobe\Acrobat 4.0\Reader\Acrord32.exe" /t /s "U:\PDF_MS\SM003067K08.pdf" Planning_H2 BUT if the PDF file has been created in a newer version of Acrobat an invisible window opens
回答8:
You have already tried something different than Acrobat Reader, so my advice is forget about GUI apps and use 3rd party command line tool like RawFilePrinter.exe
private static void ExecuteRawFilePrinter() {
Process process = new Process();
process.StartInfo.FileName = "c:\\Program Files (x86)\\RawFilePrinter\\RawFilePrinter.exe";
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
process.StartInfo.Arguments = string.Format("-p \"c:\\Users\\Me\\Desktop\\mypdffile.pdf\" \"Canon Printer\"");
process.Start();
process.WaitForExit();
if (process.ExitCode == 0) {
//ok
} else {
//error
}
}
Latest version to download: http://effisoft.pl/rawfileprinter
回答9:
For Problem 2
Using /h param will open the Acrobat or Adobe Reader in minimized window.
Example:
C:\Program Files (x86)\Adobe\Reader 10.0\Reader>AcroRd32.exe **/h** /t "Label.pdf" "HP4000" "HP LaserJet 4100 Series PCL6" "out.pdf"
Related Documentation: https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/Acrobat_SDK_developer_faq.pdf#page=24
来源：https://stackoverflow.com/questions/4868982/printing-a-pdf-silently-with-adobe-acrobat