The set of embedded files if a set has been embedded in the
PDF.
Normally a file specification will refer to one file. However in
some situations it may be necessary to allow it to refer to
multiple. For example if a CMYK image is available as four color
separations then it may be useful to be able to embed four
different files to make up the whole data set. Each file will need
a name so this property reflects both the name and the content of
each file.
If the EmbeddedFiles property has a value, then the first file
in the array should always be the same as the EmbeddedFile
property. For this reason setting this property will also set the
EmbeddedFile property to be equal to the first file in the array.
If there are no items in the array then the EmbeddedFile property
will be cleared.
This property requires reference to other objects in the
ObjectSoup. If this object is not part of an ObjectSoup this
property will always be null.
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