Audio Captions to Accessible PDFs

[santhoshr29800103]

Hi,

We have non-narrative audio files and that need to provide captions for accessibility. So we want to link out the captions (.srt file) in accessible PDFs, so that it will read with subtitle in bottom of the screen.. Is there any feature available for this requirement in Acrobat. 

Regards,

Santhosh

[Bevi Chagnon - PubCom.com]

Audio/Video playback is not fully supported in PDF, at this time. It's unpredictable whether the end user will be able to play the A/V clip, let alone have access to the captions. Part of it is the weak standard, but a good deal is the browser, screen reader, or other user agent (aka, assistive technology) the end user is using.

Future PDF standards will do a better job of this, so we recommend that our clients hold off on A/V in PDF for a couple more years.

At this time (early 2022), we recommend the following strategy to our accessibility clients:

• Place a still from the video as a graphic in the PDF.
• In it's caption or nearby body text (NOT in the Alt-Text), place an accessible hyperlink that takes the user to a website URL where full video capabilities, including captioning, is available to all users. Pro-quality video-streaming websites like Vimeo are a good choice because they handle captioning well and also allow you to make the A/V private, behind a paywall, or protected with a password.

[santhoshr29800103]

Thanks for the reply

[try67]

You should hard-code the subtitles into the video clip if you want to make sure they are always visible.