add Image Alt-Text to all products

[modernmagic]

My site has 900 products they all need "Image Alt-Text". 

Is there a way to generate the Image Alt-Text from the "file title"(and remove the file extension if possible) from all 900 products at once? 

[pinochico]

yes, of course

Find place, where is generate image in PHP and add as params.
We add this hack into VM all time, we don't wait for DEV team

But.

You have to go to this file:
administrator/components/com_virtuemart/helpers/mediahandler.php

Find this code:

if(empty($this->file_meta)){
         if(!empty($this->file_description)){
            $file_alt = $this->file_description;
         } else if(!empty($this->file_name)) {
            $file_alt = $this->file_name;
         } else {
            $file_alt = '';
         }
      } else {
         $file_alt = $this->file_meta;
      }

and change for you.

And in function displayIt you can change too - add width, height or aspect-ratio for eliminate CLS.

We use this:

$image = '<img src="' . $image_href . '" alt="' . $file_alt . '" title="' . $file_alt . '" ' . $imageArgs . ' width="' . $size[0] . '" height="' . $size[1] . '" style="aspect-ratio: ' . $size[0] . ' / ' . $size[1] . '"/>';