The PTK format was initially developed by IBM as a Presentation Text Object Content Architecture (PTOCA) format, used in document processing. Such files contain parts of a larger document and single-page or multi-page segments of text. The PTK format is now considered rare and is no longer supported by its developer.
The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert multiple PTK files as once.
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