Export to PDF from embedded dashboard

[marcinkozaczyk]

Is it possible to export to PDF / Image from embedded dashboard, as it is possible from Dahboard view in superset application?

[dosubot[bot]]

Hello @marcinkozaczyk! I'm a bot designed to assist you with bugs, questions, and contributions. I'm here to help while you wait for a human maintainer.

Yes, it is possible to export to PDF or Image from an embedded dashboard, similar to how it is done from the Dashboard view in the Superset application. The code includes methods for generating screenshots and PDFs from dashboards, which can be used for this purpose.

For example, the _get_screenshots method captures screenshots of charts or dashboards, and the _get_pdf method generates a PDF from these screenshots:

def _get_screenshots(self) -> list[bytes]:
    # ... (code to get screenshots)
    return [image]

def _get_pdf(self) -> bytes:
    screenshots = self._get_screenshots()
    pdf = build_pdf_from_screenshots(screenshots)
    return pdf

These methods can be utilized to export the embedded dashboard to PDF or Image ^[1].

To continue talking to Dosu, mention @dosu.

[jpchev]

yes, but exporting to pdf from iframe doesn't work well, only the visible graphics are displayed in the pdf file, the other ones, in the hidden parts of the page (visible by scrolling the iframe) won't appear in the pdf

[lucky5th]

@jpchev Configuring superset to generate PDFs using a WebDriver in the backend resolves the problem you're describing. However, you will/might run into the problem I'm trying to figure out over in #32502.