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Extending PDF Data

Version 1.7 of the PDF Standard includes Appendix E, PDF Name Registry. This explains how the PDF data structures can be extended ......

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What happens when you die?

The one thing that is certain in life. The only question is when? The Portable Blockchain Format is established ......

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PDF Parsing

PDF was designed as an append only file format because of the slow performance of write operations in 1993......

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PDF as a Blockchain

A PDF file comprises a number of objects of different type. The most flexible of these is a Dictionary Type.......

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