Unless you open the pdf in gimp or something (and it's not just a photo, which would be equally bad in a word document) you should be able to copy from a PDF too.
Had Javascript on my resume, and the recruiter send me to an interview for a Java programming job...
The other one asked me to take an online test about cryptography algorithms in node js for a prescreening interview, which is something I never even remotely had to deal with in more than 20 years working for multiple e-commerce, health systems, CMS and other services and websites. Also, no Google or any online sources allowed to solve their questions...
not sure this is a great tip. Only jobs I got past 1st stage with this year was through a recruiter, applying solo got me auto booted from over 120 jobs.
I have great experience with third party recruiters. I only ever had to send them a CV (as PDF!) and they took care of the rest. I just had to go to the interview. The company hired and payed for the recruiter so for me it’s a win.
Granted, in my last two job searches I never looked for open positions myself, I answered messages from recruiters in my inbox. So it’s more that they were applying to me. Most messages can be ignored because the recruiters have no idea what they are talking about.