Adobe 22020772 Montage- und Bedienungsanleitung

Adobe® Acrobat® 9 Pro Accessibility Guide:

Using the Accessibility Checker

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Contents

Contents i

Using the Acrobat 9 Pro Accessibility Checker 1

Introduction 1

Quick Check 1

Quick Check Results 1

Full Check 1

Accessibility Full Check Options 3

Continue Checking Until All Issues are Addressed 3

Additional Validation Techniques 4

Contents

Making PDF Accessible with Adobe Acrobat 9 Pro

ii |

Making PDF Accessible with Adobe Acrobat 9 Pro

Using the Acrobat 9 Pro

Accessibility Checker

Introduction

The accessibility checker tools in Adobe Acrobat 9 Pro (Quick Check and Full Check) can help to identify

areas of documents that may be in conflict with Adobe's interpretations of the accessibility guidelines

referenced in the application and its documentation. However, these tools don’t check documents against all

accessibility criteria, including those in such referenced guidelines, and Adobe does not warrant that

documents comply with any specific guidelines or regulations.

Quick Check

Use Quick Check to check for document structure tags, searchable text, and appropriate security settings for

accessibility. This method is often the best way to check for accessibility before attempting to use a PDF.

Quick Check Results

• This document has logical structure but it is not a Tagged PDF. Some accessibility

information may be missing.” Quick Check has found an underlying document structure

in the document, so Acrobat will use the available document structure to control the

reading order, rather than analyzing the document itself. However, this untagged

document structure might be incomplete or unreliable, so assistive software and the

accessibility features in Acrobat (such as the Read Out Loud and the Save As Text features)

may not read the page properly. If the reading order of the page seems to be wrong, select

Override The Reading Order In Tagged Documents in the Reading panel of the

Preferences dialog box.

• This document is not structured, so the reading order may not be correct. Try different reading

orders using the Reading Preferences panel. Quick Check has found no underlying

document structure that Acrobat can use for reading order. Acrobat will analyze the

reading order of the document using the current analysis method set in the Reading Order

preference, but this PDF might not be read correctly by screen readers. If the reading order

seems wrong, select a different option for Reading Order in the Reading panel of the

Preferences dialog box.

• No accessibility problems were detected in this quick check. Choose the Full Check command to

check more thoroughly. Quick Check has found that the PDF contains searchable text, is

tagged, has an underlying document structure, and has no security settings that prohibit

access for screen readers. To check for other types of accessibility problems that may be

present in the PDF, use Full Check.

• This document’s security settings prevent access by screen readers. Quick Check has

found that the PDF has security settings that interfere with screen readers’ ability to extract

text for conversion to speech. You may be able to use a screen reader with this document if

your assistive technology product is registered with Adobe as a Trusted Agent. Contact

your assistive technology product vendor.

• This document appears to contain no text. It may be a scanned image. Quick Check has

found that the PDF contains no searchable text, probably because the document consists

entirely of one or more scanned images. This means that screen readers, Read Out Loud,

Reflow view, and most other accessibility features—which rely on text as input—will not

work with this document

Full Check

Use Full Check to perform a more thorough check for many characteristics of accessible PDFs, such as the

use of fonts that can be mapped reliably to Unicode text.

Using the Acrobat 9 Pro Accessibility Checker

Making PDF Accessible with Adobe Acrobat 9 Pro

2 |

Full Check checks a PDF for many of the characteristics of accessible PDFs.

You can choose which kinds of accessibility problems to look for and how you want to view the results.

• Choose Advanced > Accessibility > Full Check.

• Select options for how you want to view the results.

You can save the results as an HTML file or as comments that are located where the accessibility problems

are detected.

• Select a page range if you prefer to do a full check on individual sections of a document.

When you have a large document, running a full check one section at a time can be more efficient.

• Select an accessibility standard (Adobe PDF, Section 508 (U.S.), or W3C ) from the Name menu,

and then select the accessibility options to check for.

The standard that you select in the Name menu determines which accessibility options are

available.

• Click Start Checking.

The results are displayed in the left panel, which also has helpful links and hints for repairing issues (See

“Figure 1 Acrobat 9 Pro Accessibility Report” on page2)

If you created a report in step 2, the results are available in the selected folder. Clicking on the links

highlights the problem areas in the document. The Accessibility Checker panel also provides hints for repair

which you should follow

Figure 1 Acrobat 9 Pro Accessibility Report

Using the Acrobat 9 Pro Accessibility Checker

Making PDF Accessible with Adobe Acrobat 9 Pro

| 3

Because the Full Check feature is unable to distinguish between essential and nonessential content types,

some issues it reports don’t affect readability. It’s a good idea to review all issues to determine which ones

require correction.

Accessibility Full Check Options

• Create Accessibility Report . Creates an HTML report of accessibility issues, which is

opened in the navigation pane and saved in the location indicated by the Folder field.

• Include Repair Hints In Accessibility Report . Adds suggestions for fixing accessibility

problems to the HTML report or comments.

• Create Comments In Document . Adds comments to the document that indicate

accessibility problems. Delete all accessibility comments from the PDF after you repair the

accessibility issues.

• Page Range . The range of pages to check.

• Name . The set of accessibility criteria to check. For the Section 508 and W3C guidelines,

the options area includes a Browse button that links to the website for the respective

guidelines. Select Adobe PDF to choose from options for the Adobe PDF accessibility

standard

• Alternative Descriptions Are Provided . Checks for tagged figures that are missing

alternate text.

• Text Language Is Specified . Checks for paragraphs that don’t have a language specified

for them. Setting the language for an entire document in the Document Properties dialog

box corrects all errors related to this option.

• Reliable Character Encoding Is Provided . Checks for fonts that are inaccessible to

screen readers and other assistive software. Fonts must contain enough information for

Acrobat to correctly extract all the characters to text. If one or more fonts don’t allow for

the correct extraction of all the characters, the PDF is inaccessible.

• All Content Is Contained In The Document Structure . Checks for page elements that

may have been overlooked during tagging. Adding these elements to the tag tree (if

necessary) ensures that a screen reader can present the content to a user.

• All Form Fields Have Descriptions . Checks for form fields that are missing descriptions.

• Tab Order Is Consistent With The Structure Order . Checks whether tags properly

reflect the document’s structure.

• List And Table Structure Is Correct . Checks whether tags that have been generated for

lists and tables meet the requirements of tagged PDF.

Continue Checking Until All Issues are Addressed

Repeat the process of running the Accessibility Checker and using familiar repair techniques or following

the Hints for Repair until the Accessibility Checker indicates “The checker found no problems in this

document” for the tests you have selected (See “Figure 2 A Successful Accessibility Check” on page4).

Note: While the Accessibility Checker helps you evaluate the accessibility of your documents

and helps identify areas that may be in conflict with Adobe's interpretations of the

referenced guidelines, the Accessibility Checker does not check all accessibility guidelines

and criteria, including those in such referenced guidelines, and Adobe does not warrant

that your documents will comply with any specific guidelines or regulations. Please

consult with your legal counsel for guidance on compliance with the referenced

Using the Acrobat 9 Pro Accessibility Checker

Making PDF Accessible with Adobe Acrobat 9 Pro

4 |

guidelines or any other accessibility guidelines.

Figure 2 A Successful Accessibility Check

Additional Validation Techniques

Of course, the best way to test the accessibility of a document is to attempt to use the document with the

tools that your readers will use. However, even if you don’t have a screen reader or braille printer, you can

still use any of several methods provided by Acrobat for checking the accessibility of a PDF file.

• Use Reflow view to quickly check reading order.

• Use Read Out Loud to experience the document as it will be experienced by readers who use this

text-to-speech conversion tool.

• Save the document as accessible text and then read the saved text file in a word-processing

application to experience the document as it will be experienced by readers who use a braille

printer.

• Use the TouchUp Reading Order tool, Tags tab, and Content tab to examine the structure, reading

order, and contents of a PDF in detail. A complete discussion of the TouchUp Reading Order tool

can be found in the document Adobe® Acrobat® 9 Pro Accessibility Guide: PDF Accessibility Repair

Workflow.

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