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I think OP is concerned about conflicting data - the visual representation may not match the XML data.
by btgeekboy 8y ago
I think OP is concerned about conflicting data - the visual representation may not match the XML data.
- leovander 8y ago...the visual representation may not match the XML data Hopefully OP doesn't learn about how his medical history is possibly passed around. https://en.wikipedia.org/wiki/Continuity_of_Care_Document https://en.wikipedia.org/wiki/Continuity_of_Care_Document
- askvictor 8y agoGiven that it's possible to have javascript in a PDF as well, it wouldn't be too hard to have a bit of code that verifies the XML matches the human-readable version. Or, failing that, some sort of crypto signature to check both to see things haven't been tampered with.
- josefx 8y agoAs far as I can tell the standard prohibits PDF files with any dynamic content, including javascript. Also there is no point in embedding the verification code in the PDF if you don't trust its contents.