How so I specify a quote and other characters in a password used to open PDF using PDF2Image SDK?

[Support]

Q: If a PDF has a password with double quotations, we can't open and convert the PDF.

If PDFTron PDF2Image SDK offers escaped double quotations, please show us the escape sequence.

A part of our C# code sample is as below.
Suppose "documentpassword" variable contains double quotations in a  normal way on C#.

 

String cmd = "--op on ";
cmd += "--config \"" + Param.PDF_FONTCONFIG_FILEPATH + "\" ";
if (0 < dpi) cmd += "--dpi " + dpi + " ";

if (null != documentpassword && 0 < documentpassword.Length)
  cmd += "--pass \"" + documentpassword + "\" ";

if (_endpage == Param.NO_MAX_NUMBER_OF_PAGES)
 cmd += "-a " + _startpage.ToString() + "- ";
else
 cmd += "-a " + _startpage.ToString() + "-" + _endpage.ToString() + " ";

cmd += "-f " + outputformat + " --prefix " + outputfileprefix + " --
digits 1 -o \"" + outputfolder + "\" \"" + targetfullpath + "\"";

GCHandle gch = GCHandle.Alloc(this, GCHandleType.Normal);
ret = PDF2ImageRun(cmd, mycallback, GCHandle.ToIntPtr(gch));

 

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A: You can  specify any password by surrounding it with quotes and escaping any quote characters in the password. For example:

PDF2ImageRun("-f png in.pdf --pass "\ 1 303 3 \" ", 0, 0);

decodes the encrypted file with password ‘ 1 303 3 ’.

If the password contains any quotes you may need to escape them.

For example:

 

"-f png in.pdf --pass \"\\\"\" "

 

Translates into...

 

-f png in.pdf --pass "