A structured storage system to bundle these elements and any associated content into a single file, with data compression where appropriate.Īdobe Acrobat, Adobe InDesign, Adobe FrameMaker, Adobe Illustrator, Adobe Photoshop, Google Docs, LibreOffice, Microsoft Office, Foxit Reader, Ghostscript.Чтобы выполнить конвертацию электронной книги, выполните несколько шагов: A font-embedding/replacement system to allow fonts to travel with the documents. The PDF combines three technologies: A subset of the PostScript page description programming language, for generating the layout and graphics. This allows for high-quality, readable images to be stored in a minimum of space, so that they can be made available on the web. Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it.ĭjVu uses technologies such as image layer separation of text and background/images, progressive loading, arithmetic coding, and lossy compression for bitonal (monochrome) images.

The Portable Document Format (PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating systems.

Application/pdf, application/x-pdf, application/x-bzpdf, application/x-gzpdfĭjVu is a computer file format designed primarily to store scanned documents, especially those containing a combination of text, line drawings, indexed color images, and photographs.

Djvu to pdf obnline