Boolean rendered as Checkbox doesn't display a label in PDF

[JaneSjs]

User Issue: T16746 - survey-pdf
https://surveyjs.answerdesk.io/internal/ticket/details/T16746

---

View Demo

In a survey runner:

In PDF:

Expected behavior: in PDF, a label appears beside a checkbox.

[JaneSjs]

We researched this task. Currently, a Boolean question rendered as 'checkbox' renders the labelTrue and labelFalse labels in PDF. Unfortunately, we may not change this behavior in the meantime and render the label instead because it may introduce a breaking change. While researching this task, we found another issue which highlights ambiguous settings of the 'checkbox' rendering mode. We may require to rework the 'checkbox' rendering mode in the future and eliminate those issues.

In the meantime, consider the following alternatives.

Option 1: Use the 'checkbox' rendering mode for a Boolean question and set the labelTrue and labelFalse properties to the label text.
You would require to copy the label to the labelTrue and labelFalse properties.
View Plunker

{
  "pages": [{
    "elements": [
      {
        "type": "boolean",
        "name": "Birthdate_Refused",
        "label": "Refused",
        "labelTrue": "Refused",
        "labelFalse": "Refused",
        "titleLocation": "hidden",
        "hideNumber": true,
        "renderAs": "checkbox",
        "valueTrue": 1,
        "valueFalse": 0
       }
    ]
  }]
}

Option 2: Use the Checkbox question instead of a Boolean question.
With this option, you would configure a regular Checkbox question with a single check item. Consider the following demo:
View Plunker

{
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "checkbox",
     "name": "Birthdate_Refused",
     "title": "Birthday",
     "hideNumber": true,
     "choices": [
      {
       "value": "refused",
       "text": "Refused"
      }
     ]
    }
   ]
  }
 ]
}