DJVU has become a popular format for storing e-books or other types of documents that contain fixed page formatting including text, images, charts or other types of similar features. Many users prefer the DJVU format for storing scanned documents because of its ability to provide good quality in a smaller size than, for example, PDFs. Moreover, DJVU files can contain an optical character recognition layer which helps users copy and paste certain sections of the document with more precision than in the case of PDFs.