---
title: "PRE-VIEWER – PDF Butler Previewer"
description: "In some cases, you want to review the document before saving, emailing, signing, ... . The previewer Lightning component shows your document and proposes the actions to take. [Academy - PDF Butler Pre viewer](https://www.youtube.com/embed/tBGFlrrHNNM?si=KsXy5lQH9PRRPgkw) Enabling with Clickjack protection: In some…"
url: "https://pdfbutler.com/academy/pdf-butler-academy/pdf-butler-lightning-components/pre-viewer/"
updated: "2025-08-01"
category: PDF BUTLER LIGHTNING COMPONENTS
---

# PRE-VIEWER – PDF Butler Previewer

In some cases, you want to review the document before saving, emailing, signing, ... . The previewer Lightning component shows your document and proposes the actions to take.

[Academy - PDF Butler Pre viewer](https://www.youtube.com/embed/tBGFlrrHNNM?si=KsXy5lQH9PRRPgkw)

Enabling with Clickjack protection:

In some cases when you generate the document, Visualforce page previewer fails to load with a blank page or white screen. This is because of the Clickjack security settings of Salesforce. To solve this issue, watch below video.

[ClickJack Protections With PDF Butler Previewer](https://www.youtube.com/embed/3PWFmpfmeNs?si=dy7qNPgJV9MQEnV1)

Delivery Overwrite Options: Never save (BASE64) or Do not save on preview (VIEW_THEN_SAVE):

[PDF Butler Previewer - Delivery Overwrite Options](https://www.youtube.com/embed/H-nL3tBOOqM?si=6JjY1-KXJoAa3PrH)

Enable Previewer toolbar: makes it easy to zoom and print from the previewer

[PDF Butler Previewer Enable Previewer toolbar](https://www.youtube.com/embed/Fk5cpejOXOM?si=BxAdE_EOsHlLPmYA)