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| Name | Portable Document Format |
| Extension | .pdf |
| Mime | application/pdf
application/x-pdf
application/x-bzpdf
application/x-gzpdf |
| Typecode | 'PDF ' (including a single space) |
| Uniform Type | com.adobe.pdf |
| Magic | %PDF |
| Owner | Adobe Systems |
| Released | , 1993 |
| Latest Release Version | 1.7 |
| Standard | ISO/IEC 32000-1:2008 |
| Url | Archives |
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| | Name | Forms Data Format (FDF) |
| Extension | .fdf |
| Mime | application/vnd.fdf |
| Type Code | 'FDF ' |
| Owner | Adobe Systems |
| Released | , 1996 (PDF 1.2) |
| Extended From | PDF |
| Extended To | XFDF |
| Standard | ISO/IEC 32000-1:2008 |
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| | Name | XML Forms Data Format (XFDF) |
| Extension | .xfdf |
| Mime | application/vnd.adobe.xfdf |
| Type Code | 'XFDF' |
| Owner | Adobe Systems |
| Latest Release Version | 2.0 |
| Extended From | PDF, FDF, XML |
| Url | specification |
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Portable Document Format (PDF) is an open standard for document exchange. The file format created by Adobe Systems in 1993 is used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system.
Each PDF file encapsulates a complete description of a fixed-layout 2D document that includes the text, fonts, images, and 2D vector graphics which compose the documents. Lately, 3D drawings can be embedded to PDF documents with Acrobat 3D using U3D or PRC and various other data formats.
In 1991 Adobe Systems co-founder John Warnock outlined a system called "Camelot", that evolved into the Portable Document Format (PDF) file-format.
Formerly a proprietary format, PDF was officially released as an open standard on July 1, 2008, and published by the International Organization for Standardization as ISO/IEC 32000-1:2008.
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| Standard Type 1 Fonts : Usage rights |
|---|
| Version |
Year of publication |
New features |
Supported by Reader version |
|---|
| 1.0 |
1993 |
|
Acrobat Reader (Carousel) |
| 1.1 |
1996 |
Passwords, encryption (MD5, RC4 40bit), device-independent color, threads and links |
Acrobat Reader 2.0 |
| 1.2 |
1996 |
Interactive page elements (such as radio buttons and checkboxes); 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; support for playing movies from external files; support for playing sounds, either embedded in the PDF file or from external files ; Unicode; advanced color features and image proxying |
Acrobat Reader 3.0 |
| 1.3 |
2000 |
Digital signatures; ICC and DeviceN color spaces; JavaScript actions; Embedded file streams - embedding files of any type directly within the body of the PDF file itself (e.g. used for attachments); many new annotation types; new features of the Adobe imaging model embodied in PostScript LanguageLevel 3; Masked images; Alternate representations for a single image; Smooth shading; Enhanced page numbering; Web Capture - a facility for capturing information from World Wide Web and converting it to PDF; Logical structure - a facility for representating logical structure independently of its graphical structure; additional support for CIDFonts; data structures for mapping strings and numbers to PDF objects; Prepress Support - information useful in prepress production workflows; new functions - for several types of function object that represent parameterized classes of functions |
Acrobat Reader 4.0 |
| 1.4 |
2001 |
JBIG2; transparency; RC4 encryption key lengths greater than 40bits (40-128bits); enhancements to interactive forms and Forms Data Format (FDF), support for XML form submissions, embedded FDF files, Unicode specification of field export values, support for remote collaboration and digital signatures in FDF files; support for accessibility to disabled users; metadata streams using XML - Extensible Metadata Platform (XMP); Tagged PDF ;Facilities for including printer’s marks; Support for the display and preview of production-related page boundaries; New predefined CMaps; Alternate Presentations - alternate ways in which the document may be viewed; The ability to import content from one PDF document into another; EmbeddedFiles entry in the PDF document’s name dictionary - a standard location for the embedded data |
Acrobat Reader 5.0 |
| 1.5 |
2003 |
JPEG 2000; enhanced support for embedding and playback of multimedia; object streams; cross reference streams; XML Forms Data Format (XFDF) for interactive form submission (replaced the XML format in PDF 1.4); support for forms, rich text elements and attributes based on Adobe’s XML Forms Architecture (XFA) 2.02; public-key security handlers using PKCS#7 (introduced in PDF 1.3 but not documented in the PDF Reference until PDF 1.5), public-key encryption, permissions - usage rights (UR) signatures (does not require document encryption), PKCS#7 with SHA-1, RSA up to 4096-bits; security handler can use its own encryption and decryption algorithms; Optional Content - sections of content in a PDF document that can be selectively viewed or hidden by document authors or consumers - for items such as CAD drawings, layered artwork, maps, and multi-language documents; Alternate Presentations - the only type is slideshow - invoked by means of JavaScript actions (Adobe Reader supports only SVG 1.0) |
Adobe Reader 6.0 |
| 1.6 |
2004 |
3D artwork, e.g. support for Universal 3D file format; OpenType font embedding; support for XFA 2.2 rich text elements and attributes; AES encryption; PKCS#7 with SHA256, DSA up to 4096-bits; NChannel color spaces; additional support for embedded file attachments, including cross-document linking to and from embedded files; enhancements and clarifications to digital signatures related to usage rights and modification detection and prevention signatures |
Adobe Reader 7.0 |
| 1.7 |
2006 |
increased presentation of 3D artwork; support for XFA 2.4 rich text elements and attributes; presentation of multiple file attachments (portable collections); document requirements for a PDF consumer application; new string types - PDFDocEncoded string, ASCII string, byte string; PKCS#7 with SHA384, SHA512 and RIPEMD160 |
Adobe Reader 8 |
| 1.7 Extension Level 3 |
2008 |
256-bit AES encryption; incorporation of XFA Datasets into a file conforming PDF/A-2; RichMedia annotations - attaching Flash applications, video (including Flash video with H.264), audio, and other multimedia with expanded functionality, two-way scripting bridge between Flash and a conforming application; support for the rich text conventions described in XFA 2.5 and 2.6 |
Adobe Reader 9 |
| 1.7 Extension Level 5 |
2009 |
XFA 3.0 |
Adobe Reader 9.1 |
Multi-purpose office document file formats
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