PDFBs
PDFBs refers to a hypothetical file format or technology that combines elements of Portable Document Format (PDF) with features commonly found in digital books or e-readers. The exact specifications or prevalence of PDFBs are not established within mainstream technology or publishing.
The concept likely arises from the desire to merge the ubiquitous compatibility and static nature of PDFs
Applications for a PDFB format could include digital textbooks, interactive reports, or publications that require both