How to remove a line of HTML in webform?

Question

The company I work for uses Drupal Webform to collect information regarding it's customers. At the very end of the webform, we have a file component with a size maximum of 64 MB. I was tasked with removing the description under the upload.

Just to clarify, I don't want to remove the max size, just the text that says what the max size is.

Answer 1

You need to add to your css file this style:

div.field-widget-file-generic p.help-block{
    display: none;
}

Answer 2

I am not sure which Drupal version are you using, as you have not provided. But if I use common sense, it should be D7, as webform module does not have stable D8 version.

Since you want the 64MB, it has to be done programmatically as that number comes from the code, so if you change tomorrow to 32MB, it needs to change accordingly, and display on that?

This we can do the by overriding the themeable output, You need to use function theme_file_upload_help()

Copy and paste that following code in your theme's template.php file, change the YourThemeName with your theme name. save and clear cache.

function YourThemeName_file_upload_help($variables) {
  $description = $variables['description'];
  $upload_validators = $variables['upload_validators'];

  $descriptions = array();

  if (strlen($description)) {
    $descriptions[] = $description;
  }
  if (isset($upload_validators['file_validate_size'])) {
    $descriptions[] = t('!size.', array('!size' => '<strong>' . format_size($upload_validators['file_validate_size'][0]) . '</strong>'));
  }
  if (isset($upload_validators['file_validate_extensions'])) {
    $descriptions[] = t('Allowed file types: !extensions.', array('!extensions' => '<strong>' . check_plain($upload_validators['file_validate_extensions'][0]) . '</strong>'));
  }
  if (isset($upload_validators['file_validate_image_resolution'])) {
    $max = $upload_validators['file_validate_image_resolution'][0];
    $min = $upload_validators['file_validate_image_resolution'][1];
    if ($min && $max && $min == $max) {
      $descriptions[] = t('Images must be exactly !size pixels.', array('!size' => '<strong>' . $max . '</strong>'));
    }
    elseif ($min && $max) {
      $descriptions[] = t('Images must be between !min and !max pixels.', array('!min' => '<strong>' . $min . '</strong>', '!max' => '<strong>' . $max . '</strong>'));
    }
    elseif ($min) {
      $descriptions[] = t('Images must be larger than !min pixels.', array('!min' => '<strong>' . $min . '</strong>'));
    }
    elseif ($max) {
      $descriptions[] = t('Images must be smaller than !max pixels.', array('!max' => '<strong>' . $max . '</strong>'));
    }
  }

  return implode('<br />', $descriptions);
}

Image out-put:

---

Now this will remove Files must be less than part from entire web-site.

If you want to apply this change only to that particular webform you need to replace the following code in above code,

if (isset($upload_validators['file_validate_size'])) {
    $descriptions[] = t('!size.', array('!size' => '<strong>' . format_size($upload_validators['file_validate_size'][0]) . '</strong>'));
}

With,

if (isset($upload_validators['file_validate_size'])) {
      if('webform_ID'){
    $descriptions[] = t('!size.', array('!size' => '<strong>' . format_size($upload_validators['file_validate_size'][0]) . '</strong>'));
 }
}

Note:Change the 'webform_ID' with your webform's ID.