Over years, my caseload documentation drifts: inconsistent file names, images stored on personal devices, and session …
Open the PDF containing rich media in Adobe Acrobat Pro.
Select the embedded media (such as video or audio) by clicking on it.
Right-click the media and choose Properties.
In the Properties dialog, enter a concise and descriptive alternate text in the Alternate Text field.
CautionAlternate text should clearly describe the content and purpose of the media for users who cannot access it directly.
Close the Properties dialog to save the alternate text.
If the media is a video or audio file, ensure it includes captions or subtitles by embedding a caption file (such as .srt) or using a version with burned-in captions.
Best practiceIf Acrobat does not support adding captions directly, use a video editor to add captions before embedding the media.
Verify that playback controls (such as play, pause, and stop) are visible and accessible by keyboard navigation.
NoteAccessible controls are essential for users who rely on keyboard or assistive technology.
Test the media with a screen reader or accessibility checker to confirm that alternate text, captions, and controls are functioning as intended.
Best practiceSome users recommend testing with multiple screen readers for best results.
You can check accessibility features for rich media by using the Accessibility Checker in Acrobat Pro after making your changes.
This runs in the Acrobat app - there is no separate API for this task.
In Adobe Acrobat, you can add alt text to each image. Alt text is a simple description that helps people using screen readers understand what the image shows. Open the PDF, select the image, and use the 'Set Alternate Text' option.
Rich media in a PDF means content like pictures, videos, or audio clips. These types of media need special steps to make sure everyone can access and understand them, not just text readers.
Adding alt text helps people who can't see the images or videos understand what is there. This is important for students or readers who use screen readers or have visual disabilities.
Yes, Adobe Acrobat has an accessibility checker tool. This tool reviews your PDF and tells you if there are any problems with images, videos, or audio not being accessible.
Captions and alt text are both helpful, but they serve different needs. Captions help people who can't hear the audio, while alt text describes the video for those who can't see it. It's best to use both if possible.