I am trying to generate a PDF and attach it to an object.

I read online that you can set a page in apex and get the content as a blob, then set that as an attachment... is there a way to pass some context variables to the page?

For example if I wanted to pass an account id to the controller... how would I do that?

```
pageReference pdfPage = Page.VFPageName;
blob pdfBody;
pdfBody = pdfPage.getContentAsPDF();

```

But how to generate the page in a certain context where accountId='a00blahblahblah'?

The long term goal is to be able to call this pdf conversion/attachment process from a variety of different objects via invocable apex in flow, passing in an id and type to give the controller context on what info to display on the pdf.