Interactive page elements (radio buttons, checkboxes &c) interactive, fill-in forms (AcroForm) Forms Data Format (FDF) for interactive form data that can be imported, exported, transmitted and received from the Web mouse events external movie reproduction external or embedded sound reproduction zlib/ deflate compression of text or binary data Unicode advanced color features and image proxying ĭigital signatures ICC and DeviceN color spaces JavaScript actions embedded file streams of any type (e.g.

Passwords, encryption (MD5, RC4 40bit), device-independent color, threads and links, binary format for smaller files Text, images, pages, hypertext links, bookmarks, thumbnail sketches Various aspects of Adobe's Extension Levels published after 2006 were accepted into working drafts of ISO 32000-2 (PDF 2.0), but developers are cautioned that Adobe's Extensions are not part of the PDF standard. Thereafter, further development of PDF (including PDF 2.0) is conducted by ISO's TC 171 SC 2 WG 8 with the participation of Adobe Systems and other subject matter experts.įrom 1993 to 2006 Adobe Systems changed the PDF specification several times to add new features. Adobe Acrobat, Adobe's suite for reading and creating PDF files, was not freely available early versions of PDF had no support for external hyperlinks, reducing its usefulness on the Internet the larger size of a PDF document compared to plain text required longer download times over the slower modems common at the time and rendering PDF files was slow on the less powerful machines of the day.Īdobe distributed its Adobe Reader (now Acrobat Reader) program free of charge from version 2.0 onwards, and continued supporting the original PDF, which eventually became the de facto standard for fixed-format electronic documents. PDF's adoption in the early days of the format's history was slow. In those early years before the rise of the World Wide Web and HTML documents, PDF was popular mainly in desktop publishing workflows. PDF was one among a number of competing formats such as DjVu, Envoy, Common Ground Digital Paper, Farallon Replica and even Adobe's own PostScript format. It was created by a research and development team called Camelot, led by Adobe's co-founder John Warnock.

PDF was developed to share documents, including text formatting and inline images, among computer users of disparate platforms who may not have access to mutually-compatible application software. Since then, it is under the control of International Organization for Standardization(ISO) Committee of volunteer industry experts. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS|2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008.

Adobe acrobat reader version 8.0