Some test text!

Info dictionarykeyboard_arrow_down

Information dictionary: adding custom data to a PDF in Ruby

To add custom data to an existing document.

# In case you have PDFDoc you can always access
# SDF/Cos document using PDFDoc.GetSDFDoc() method
doc =
trailer = doc.GetTrailer  # Get the trailer

# Create an Info dictionary
info = trailer.PutDict("Info")
info.PutString("Producer", "PDFTron PDFNet")

# Create a custom inline dictionary within Info dictionary
custom_dict = info.PutDict("My Direct Dict")
custom_dict.PutNumber("My Number", 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.

Get the answers you need: Support


Free Trial

Get unlimited trial usage of PDFTron SDK to bring accurate, reliable, and fast document processing capabilities to any application or workflow.

Select a platform to get started with your free trial.

Unlimited usage. No email address required.

Join our live demo to learn about use cases & capabilities for WebViewer

Learn more