Word count on a PDF file can be checked by using a third-party tool like SmallSEOTools. You can check the exact word count of any PDF file by following these steps:
Visit https://smallseotools.com/word-counter/ and enter the URL of your PDF document.
Click on ‘Submit’ and then wait for the word count report to be generated.
You will get the exact word count of your PDF file that you can use for further purpose.
However, it is important to note that, SmallSEOTools only gives an approximate result as the PDFs can be composed of images, which will not be counted in the word count.
If you are looking for an alternative, you can use Nitro Pro, the leading tool for PDF. It allows you to check the number of words and characters in a PDF file with ease. You can also highlight any suspected words in order to check the exact word count.