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Working with low-level APIs can enable a wide variety of customizations with PDF documents.
PDFTron SDK offers the following benefits:
Adding custom information
To add custom information to an existing document.
A short introduction to PDF file format
An introduction to PDF file format.
SDF / COS object model
An introduction to SDF objects.
Filters and streams
An introduction to filters and streams.
Samples related to low-level API.
APIs related to low-level API.
A windows GUI tool for low-level PDF editing to view, add, or edit information for an existing document.
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