TextLayer Previous Property. The previous text object in the text chain. ABCpdf .NET PDF Library. From ABCpdf .net previous page next page Previous Property Type Default Read Only Description [C#] TextLayer [Visual Basic] TextLayer n/a Yes The previous text object in the text chain. Notes The previous text object in the text chain. If the object is not part of a chain (or is at the head of the chain) this property will be null. Example None. previous page start next page