The good news is that alt text — short text descriptions usually under 100 characters — is usually easy to add to a PDF document in whatever program you use to create the PDF. To see that alt ...

To add Alt Text to images in Excel, go through the following instructions: ... a PDF file, etc. If you want to add an Alternative Text to these files in Excel, you can do so. ...

How to add alt text to all other types of image blocks in Squarespace For Poster, Card, Overlap, Collage, and Stack images, simply add alt text by editing the Filename. 1.

In other words, Adobe Reader won't let you add text. What you need is a program that's a little more accommodating, PDF-wise. Try Foxit Reader 4.3, which allows you to add text to any PDF .

To achieve this, you can use alternative approaches, such as adding new text boxes that overlay the original text in the PDF, using the pen tool to draw over the text with your chosen color, or ...