Adobe Acrobat | PDF Reader | Review | Popular PDF Reader | ViewSoft

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Purpose[edit]

The main function of Adobe Acrobat is creating and viewing PDF documents. It can import popular document and image formats and save them as PDF. It is also possible to import a scanner's output, a website, or the contents of the Windows clipboard.

Because of the nature of the PDF, however, once a PDF document is created, its natural organization and flow cannot be meaningfully modified. In other words, Adobe Acrobat is able to modify the contents of paragraphs and images, but doing so does not repaginate the whole document to accommodate for a longer or shorter document. Acrobat can crop PDF pages, change their order, manipulate hyperlinks, digitally sign a PDF file, add comments, redact certain parts of the PDF file, and ensure its adherence to such standards as PDF/A.

The UI had major changes with the introduction of Acrobat DC in 2015, which supports Windows 7 and later, and OS X 10.9 and later. Version numbers are now identified by the last two digits of the year of major release, and the month and year is specified; the previous version was 12, but examples of the DC (Document Cloud) Acrobat product family versions are DC June 2016, version 15.016.20045, released 2 June 2016 and DC Classic January 2016, version 15.006.30119, released 12 January 2016.^[27] From DC 2015 the Acrobat family is available in two tracks, the original track, now named Classic, and the Continuous track.^[28] Updates for the Classic track are released quarterly, and do not include new features, whereas updates for the Continuous track are issued more frequently, and implemented silently and automatically.^[29]

The last pre-DC version, Acrobat XI, was updated to 11.0.23 version (and this was the final release^[30]) on November 14, 2017,^[31] support for which ended on October 15, 2017.^[32]

As of August 2018, the main members of the Acrobat family include:^[33]

• Acrobat Pro DC (for Windows and macOS)
• Acrobat Standard DC (for Windows only)
• Acrobat Reader DC (for Windows, macOS, Android, iOS and Windows Phone)
• Fill & Sign (for Android or iOS)
• Sign (for Android or iOS)
• Scan (for Android or iOS)
• Document Cloud (web service with desktop clients)

Internationalization and localization[edit]

Adobe Acrobat is available in the following languages: Arabic, Chinese Simplified, Chinese Traditional, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Turkish and Ukrainian. Arabic and Hebrew versions are available from WinSoft International,^[34] Adobe Systems' internationalization and localization partner.

Before Adobe Acrobat DC, separate Arabic and Hebrew versions were developed specifically for these languages, which are normally written right-to-left. These versions include special TouchUp properties to manage digits, ligatures option and paragraph direction in right-to-left Middle Eastern scripts such as Arabic, Hebrew, and Persian, as well as standard left-to-right Indian scripts such as Devanagari and Gujarati. The Web Capture feature can convert single web pages or entire web sites into PDF files, while preserving the content's original text encoding. Acrobat can also copy Arabic and Hebrew text to the system clipboard in its original encoding; if the target application is also compatible with the text encoding, then the text will appear in the correct script.

Security[edit]

A comprehensive list of security bulletins for most Adobe products and related versions is published on their Security bulletins and advisories page and in other related venues.^[35][36] In particular, the detailed history of security updates for all versions of Adobe Acrobat has been made public.^[37]

From Version 3.02 onwards, Acrobat Reader has included support for JavaScript. This functionality allows a PDF document creator to include code which executes when the document is read. Malicious PDF files that attempt to attack security vulnerabilities can be attached to links on web pages or distributed as email attachments. While JavaScript is designed without direct access to the file system to make it "safe", vulnerabilities have been reported for abuses such as distributing malicious code by Acrobat programs.^[38] Adobe applications had already become the most popular client-software targets for attackers during the last quarter of 2009.^[39] McAfee predicted that Adobe software, especially Reader and Flash, would be the primary target for software attacks in the year 2010.^[40]