Signing PDF with SecurSign

[vivien siu]

Hi guys, I need to sign my pDF files using SecurSign, I have never did this before, would really appretiate any help given on this.

Thanks!!

[vivien siu]

hello guys, I use the following code to execute SecurSign batch file :

public boolean secursignEncryption(String filePath, String accessID) {
boolean status = false;
String newFile = filePath.replaceAll("_c", "_e");

System.out.println(newFile);

String cmd = "e:\\Appligent\\SecurSign\\secursign -p -encrypt -ownerpass estatement -userpass 654321 -nomodify -nocopy -nonotes -noaccess -noassembly -nofill -o ";
cmd = cmd + newFile + " " + filePath;
cmd = cmd.replaceAll("-userpass 654321", "-userpass " +
accessID.trim());

System.out.println(cmd);

status = runExternal(cmd);

return status;
}

public boolean runExternal(String path) {
boolean execute = false;
try {
Runtime rt = Runtime.getRuntime();
Process p = rt.exec(path);
InputStream in = p.getInputStream();
OutputStream out = p.getOutputStream();
InputStream err = p.getErrorStream();
execute = true;
} catch (IOException e) {
e.printStackTrace();
}
return execute;
}

and I got this exception instead:

java.io.IOException: CreateProcess: e:\Appligent\SecurSign\secursign -p -encrypt -ownerpass estatement -userpass abc -nomodify -nocopy -nonotes -noaccess -noassembly -nofill -o e:\test_e.txt e:\test_c.txt error=2
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
at java.lang.ProcessBuilder.start(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at ProtectPdf.runExternal(ProtectPdf.java:68)
at ProtectPdf.secursignEncryption(ProtectPdf.java:49)
at ProtectPdf.main(ProtectPdf.java:30)

AFAIK the error=2 means that the file is not found, but I have specified the exact file path, can anyone tell me what is wrong actually?

[vivien siu]

ok, I solved the error. The correct code should be:

public boolean secursignEncryption(String filePath, String accessID) {
        boolean status = false;
        String newFile = filePath.replaceAll("_c", "_e");
 
        System.out.println(newFile);
 
        String cmd = "e:\\Appligent\\SecurSign\\secursign.bat -p -encrypt -ownerpass estatement -userpass 654321 -nomodify -nocopy -nonotes -noaccess -noassembly -nofill -o ";
        cmd = cmd + "e:\\" + " " + filePath;
        cmd = cmd.replaceAll("-userpass 654321", "-userpass " +
                accessID.trim());
 
        System.out.println(cmd);
 
        status = runExternal(cmd);
 
        File file = new File(newFile);
        System.out.println(file.exists());
 
        return status;
    }

I didn't add the .bat extension

Although there are no errors now, SecurSign is not creating a new file for me in the specified new file path. Can anyone tell me how I should write the command so that SecurSign will take an old file, encrypt it with password, and save the encrypted file to a new location, which the encrypted file is not previously created before?

[Ulf Dittmer]

Does the command work correctly on the command-line? Runtime.exec has some issues one needs to be aware of.

[vivien siu]

hmmm... solved the problem finally!

2 interesting things:
1. Secursign only works with PDF files. Previously I was testing using txt files
2. Even if it is a PDF file I'm using, if the path is too long, the command wouldn't work either. The command for SecurSign to run itself is already very long. I suggest that you put it under c: or e: what ever, then at most only make a folder and cram all the PDFs in there.

Anyway thanks Ulf