Portable Document Format files are viewable by any user with a PDF reading program. To create and edit a PDF, a PDF writing program is needed. The Adobe Acrobat line of PDF writing applications are among the most popular. They are also among the most expensive, ranging from $199 to $799. One of the features shared among all three Acrobat versions -- Standard, Pro and Suite -- is the ability to edit and delete text in PDF files. You can delete text from a PDF in Adobe Acrobat 9 Standard by following a few steps.
To create and edit a PDF, a PDF writing program is needed. The Adobe Acrobat line of PDF writing applications are among the most popular. They are also among the most expensive, ranging from $199 to $799. One of the features shared among all three Acrobat versions - Standard, Pro and Suite - is the ability to edit and delete text in PDF files. Adobe Acrobat X Pro - this includes just Acrobat X Pro, but with all the editing functionality; Simple PDF Editing with Acrobat 9 (or earlier) If all you need to do is tweak the odd word or nudge the odd element, here's how to edit PDF documents with older versions of Acrobat.
Click the 'Tools' menu and highlight the 'Advanced Editing' option to display a list of editing features. Click the 'TouchUp Text Tool' option. Acrobat will run through a process, during which it identifies fonts in the PDF. Depending on the size of the document, it could take a few seconds up to a minute or so.
Highlight a portion of text that you want to delete. Click once at the beginning of the selection and drag to the end of the selection while holding down the mouse button. You will notice that a border appears around the section of the document of which the selected text is a part.
Click the 'Edit' menu and select the 'Delete' option. Repeat 2 and 3 for each portion of text that you want to delete from the PDF file.
Adobe Acrobat Pro DC running on Windows 8. Other editions of Acrobat DC (Standard and Reader) feature a similar interface. | |||||||||||||||||||||||||
Developer(s) | Adobe Inc. | ||||||||||||||||||||||||
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Initial release | June 15, 1993; 26 years ago | ||||||||||||||||||||||||
Stable release(s)[±] | |||||||||||||||||||||||||
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Preview release(s)[±] | |||||||||||||||||||||||||
None [±] | |||||||||||||||||||||||||
Operating system | Windows, macOS, Linux,[16]Android, iOS, BlackBerry Tablet OS, BlackBerry 10, Windows Phone | ||||||||||||||||||||||||
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Type | Desktop publishing | ||||||||||||||||||||||||
License | Proprietary
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Website |
Adobe Acrobat is a family of application software and Web services developed by Adobe Inc. to view, create, manipulate, print and manage files in Portable Document Format (PDF).[19]
The family comprises Acrobat Reader (formerly Reader), Acrobat (formerly Exchange) and Acrobat.com. The basic Acrobat Reader, available for several desktop and mobile platforms, is freeware; it supports viewing, printing and annotating of PDF files.[20] Additional, 'Premium', services are available for reader on paid subscription. The commercialproprietary Acrobat, available for Microsoft Windows and macOS only, can also create, edit, convert, digitally sign, encrypt, export and publish PDF files. Acrobat.com complements the family with a variety of enterprise content management and file hosting services.
Adobe Acrobat came to being in 1993 and had to compete with other products and proprietary formats that aimed to create digital documents:
Adobe has renamed the Acrobat products several times, in addition to merging, splitting and discontinuing them. Initially, the offered products were called Acrobat Reader, Acrobat Exchange and Acrobat Distiller. 'Acrobat Exchange' soon became 'Acrobat'. Over time, 'Acrobat Reader' became 'Reader'. Between versions 3 and 5, Acrobat did not have several editions.[clarification needed] In 1999, the Acrobat.com service came to being and introduced several web services whose names started with 'Acrobat', but eventually, 'Acrobat.com' was downgraded from the name of the family of services, to that of one those service.
By 1 April 2015, the Acrobat family consisted of:[24]
Unlike most other Adobe products, such as members of Adobe Creative Suite family, the Acrobat products do not have icons that display two letters on a colored rectangle.
On April 2015, Adobe introduced the 'Document Cloud' branding (alongside its Creative Cloud) to signify its adoption of the cloud storage and the software as a service model. Apps under this branding received a 'DC' suffix. In addition, 'Reader' was renamed back to 'Acrobat Reader'.[25][26] Following the introduction of Document Cloud, Acrobat.com was discontinued as their features were integrated into the desktop and mobile apps.
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]
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.
The Arabic and Hebrew versions are 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.
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]
On September 13, 2006, David Kierznowski provided sample PDF files illustrating JavaScript vulnerabilities. Since at least version 6, JavaScript can be disabled using the preferences menu[41] and embedded URLs that are launched are intercepted by a security warning dialog box to either allow or block the website from activating.[42]Thermal design and optimization adrian bejan pdf free pdf.
On February 19, 2009, Adobe released a Security Bulletin announcing JavaScript vulnerabilities in Adobe Reader and Acrobat versions 9 and earlier.[43] As a workaround for this issue, US-CERT recommended disabling JavaScript in the affected Adobe products, canceling integration with Windows shell and web browsers (while carrying out an extended version of de-integration for Internet Explorer), deactivating Adobe indexing services and avoiding all PDF files from external sources.[44]
Adobe has identified critical vulnerabilities in Adobe Reader and Acrobat XI (11.0.01 and earlier) for Windows and Macintosh, 9.5.3 and earlier 9.x versions. These vulnerabilities could cause the application to crash and potentially allow an attacker to take control of the affected system. There have been reports of these vulnerabilities being exploited to trick Windows users into clicking on a malicious PDF file delivered in an email message. Adobe recommended users update their product installations.[45]
Adobe has released security updates for Adobe Acrobat and Reader for Windows and Macintosh. These updates address critical vulnerabilities that could potentially allow an attacker to take control of the affected system.[46][47]
Release date: May 14, 2013; Last updated: August 8, 2013; Vulnerability identifier: APSB13-15
Release date: October 28, 2010; Last updated: November 16, 2010; Vulnerability identifier: APSA10-05
Release date: January 9, 2007; Last updated: January 16, 2007; Vulnerability identifier: APSB07-01
David Kierznowski, a penetration testing expert specializing in Web application testing, has released proof-of-concept code and rigged PDF files to demonstrate how the Adobe Reader program could be used to initiate attacks without any user action.
Wikimedia Commons has media related to Adobe Acrobat. |
ref>'Adobe Acrobat DC FAQ'. helpx.adobe.com. Adobe Systems. Retrieved 20 August 2018.