One of my clients requires storing all landing pages in a PDF format into a shared document account for archival purposes.
I’ve been using a chrome extension Full Page Screen Capture (gofullpage.com).
The free version does a great job of scanning a page of any length and allowing you to save as a PNG or PDF file.
I recently upgraded to the Premium version for only $1/mo.
This allows me to attached a URL link to the page so it can be launched from Adobe Acrobat if the page is still in a published mode.
It also allows me to add text annotations. So, I’m adding the date the page was published along with notes. A lot of my pages are iterations of prior pages. So, the notes are simply what has been added, deleted or changed.
