Defines a collection of PDF viewports.

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Initializes a new PDFViewportCollection object.

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Initializes a new object.
This method supports the internal library infrastructure and should not be used by external client code.

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Adds an object to the collection.

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Clears the collection.

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This method supports the internal library infrastructure and should not be used by external client code.

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Gets the COS viewports.

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This method supports the internal library infrastructure and should not be used by external client code.

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Removes an object from the collection.

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Removes the object at the specified index from the collection.

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This method supports the internal library infrastructure and should not be used by external client code.

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Replaces an object at the specified index in the collection.

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This method supports the internal library infrastructure and should not be used by external client code.

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