Acrobat Chapter 3: Converting to Tagged PDF
- Daniel LaGrow
Instructions
Section 3.1: Saving as Tagged PDF
When you create a document with accessibility in mind, you can convert it to a tagged PDF. This is considered a type of automatic tagging because you have already applied accessibility features in the document. The features will carry over during conversion. Using this type of automatic tagging is good and will make your life easier.
To save your Word Document as a Tagged PDF,
Click on the File Tab and click Save as Adobe PDF.
In the Save As box, go to the Options Box at the bottom.
In the Acrobat PDFMaker, check Enable Accessibility and Reflow with tagged Adobe PDF and Convert Word Headings to Bookmarks.
Section 3.2: Automated Tagging
Now you have to tag your document to allow screen readers to read it properly. There are two ways to tag your document, you can tag it automatically or do it yourself. To Tag Automatically,
Click on the All Tools Tab.
Find the “Accessibility” Tool, and click Add.
With the Accessibility Tool open, click Automatically Tag PDF
The Accessibility Tags will appear on the right side of your screen. Remember, the software can make mistakes. So be sure to check every tag to be sure it is labeled correctly. Also be sure it is in the correct spot, and does not disrupt the reading order. If you see tags out of order, you can click on each tag and drag them to their correct place. For example, place everything that belongs in your heading 2 tags under the heading 2 tag. Then, place all of the heading 2 tags under the heading 1 tag. Examples on how to do this will be demonstrated in other sections of this course.
Section 3.3: Manual Tags
Tags are used to identify a contents value in a document so it can be read by assistive technology. By tagging an object, we are assigning a hierarchical value to an element. For example: An <H1> tag is used for Headings Style 1 or the main heading for a section or chapter. <H2> is used for Heading Style 2, most commonly used for subsections. In a hierarchy, <H2> must be parented under <H1>. Paragraphs or <p>, but be parented under <H2> or in necessary order. Headings must always be higher than paragraphs.
To create a tag, click the Tag Icon
Right Click No Tags Available and click Create Tag Root. Now your first tag will appear.
Click on the Options Menu and click New Tag.
In our example we will create a tag for our document by selecting the Document Tag. Then we will tag the title of our document and create a Heading 1 or H1 tag. Once the Heading 1 tag is visible, click and drag it to be inside the Document tag.
Now, highlight your title text and right click on your Heading 1 tag and click on Create Tag from Selection.
Now your title is tagged and will be read by a screen reader.
Section 3.4: Beware Untagged PDF Conversions
There are many ways to save as a PDF that produce inaccessible, untagged results. Some ways include,
Scanning a document produces a single image with no real, searchable text.
Using Print, Save as PDF on a web page or within an authoring software program produces real text. However, it does not produce tags.
Various options within Acrobat produce untagged PDFs. Examples include create PDF from Scanner, Screenshot, Web Page, and Clipboard.
Starting with one of these options is okay. But keep in mind it will take a lot more time and effort to then produce an accessible result.
Section 3.5: OCR/Scanned PDFs
PDF documents that are created by scanning a paper document are often completely inaccessible to people using screen readers. This is because they do not contain any searchable text. To make a scanned document an accessible PDF, we need to use an Optical Character Recognition tool or OCR. This will convert the image of text to actual, searchable text that can be read by assistive technologies.
Acrobat Pro DC has a built-in OCR Text Recognition tool.
Go to the All Tools Tab.
Click Add Scan & OCR.
Click Recognize Text, then In this file., then click the Recognize Button. Click on “In this file” and click the blue Recognize Text button.
After you do this, do the standard tagging process and adjust the Reading Order and Tab Order as needed.