fSpy
fSpy is open source software and totally free to download and use. But just in case you think it makes sense to pay for fSpy, here's a donate button! Pay as much or as little as you want.
SketchUp 2017 used a "Classic" perpetual-license model that requires two pieces of information to activate: a Serial Number and an Authorization (authorization) Code. Newer SketchUp releases use Trimble accounts and subscriptions instead. This guide explains what the Serial and Authorization codes are, where to find them, how to activate or transfer a Classic license, and what to do if activation fails.
If you want, I can draft a short email template you can send to SketchUp/Trimble support to request your Serial/Authorization or license release. Sketchup 2017 License Key And Authorization Number
Important Disclaimer regarding SketchUp 2017 SketchUp 2017 used a "Classic" perpetual-license model that
Before providing the technical details on how the licensing works, it is crucial to understand the current status of SketchUp 2017: The information below is provided for archival purposes
The information below is provided for archival purposes and to assist legitimate legacy users who need to reinstall their existing software on a compatible machine.
When a user installed SketchUp 2017, the authorization process followed these steps:
To authorize SketchUp 2017, a user required two distinct pieces of information: