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iOS / Guides / Info dictionary
To add custom data to an existing document.
// In case you have PDFDoc you can always access
// SDF/Cos document using PDFDoc.GetSDFDoc() method
PTSDFDoc *doc = [[PTSDFDoc alloc] initWithFilepath: filename];
PTObj *trailer = [doc GetTrailer]; // Get the trailer
// Create an Info dictionary
PTObj *info = [trailer PutDict: @"Info"];
[info PutString: @"Producer" value: @"Apryse PDFNet"];
// Create a custom inline dictionary within Info dictionary
PTObj * custom_dict = [info PutDict: @"My Direct Dict"];
[custom_dict PutNumber: @"My Number" value: 100];
Cos/SDF low-level API to edit PDF files
Full code sample which illustrates how to use basic Cos/SDF API to edit an existing document.
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