PORTABLE DOCUMENT FORMAT FILE CUSTOM FIELD

PORTABLE DOCUMENT FORMAT FILE CUSTOM FIELD

Examples include assembly of a portable document format file including encrypted content, unencrypted content, and/or alternative content. In an example, metadata, data block(s), and a content map are signed and stored in, or assembled into, a custom field or fields of the portable document format f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Magalhaes Borba Carvalho Luiz Gustavo, Brito Di Bernardo Rafael, Nunes Veronica, Mandigo Lonnie D, Schechtman Sette Ioram, Maia Alvaro
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:Examples include assembly of a portable document format file including encrypted content, unencrypted content, and/or alternative content. In an example, metadata, data block(s), and a content map are signed and stored in, or assembled into, a custom field or fields of the portable document format file. The metadata, data block(s), and content map are encrypted and assembled into a custom field or fields of the portable document format file with an encrypted key or keys. Unencrypted and/or alternative content may also be stored in the assembled portable document format file.