Set Producer / Creator Application String?

Technical Support Apryse SDK
1

Good afternoon,

say (how) is it possible to set the Producer / Creator application
string in .pdf files with PDFTron's PDFNet SDK?

Cheers and thanks,
-J

2

The simplest way to access document's metadata (e.g. author, title,
keywords, etc.) is using PDFDocInfo class. For example (in C#):

PDFDocInfo info = mydoc.GetDocInfo();
string title = info.GetTitle();
info.SetTitle("My Title");
etc...

You can also access document's metadata using SDF/Cos API:

PDFDoc doc = new PDFDoc(...);
doc.InitSecurityHandler();
Obj trailer = doc.GetTrailer(); // Get the trailer
Obj info = trailer.FindObj("Info");
if (info != null) {
  // Get 'Title'/'Author'/'Keywords'/'Subject'...
  // entry, if available
  Obj title_obj = info.FindObj("Title");
  if (title_obj != null)
  { // Note: In some documents these strings are encoded
    // using PDF text encoding.
    String title = title_obj.GetString();
    title_obj.SetString("My Title...");
  }
  else {
    info.PutString("Title", "My Title...");
  }
}

say (how) is it possible to set the Producer / Creator application
string in .pdf files with PDFTron's PDFNet SDK?