Void pantograph
In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. Normally these are invisible to the eye, but become obvious when the document is photocopied. Typically they spell out "void", "copy", "invalid" or some other indicator message.
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Void pantograph
In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. Normally these are invisible to the eye, but become obvious when the document is photocopied. Typically they spell out "void", "copy", "invalid" or some other indicator message.
has abstract
In security printing, void pan ...... ble moire pattern when copied.
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Wikipage page ID
40,613,228
Wikipage revision ID
719,724,164
comment
In security printing, void pan ...... some other indicator message.
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label
Void pantograph
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