One example - I have a partial and poor quality scan of the 1911 "Facts for Petition for Naturalization" for my great grandfather.
As far as I can tell this is a pretty hard-to-find document, I only found one other text-only version on the internet. I used the text along with my scan to create a clean blank template which has helped me to translate his answers.
If anyone has the same problem please let me know and I'll send the blank reproduction of this document to you.