I typically make a practice or assessment in Go Formative where I’m not using a PDF or Word document.
At the end of the Go Formative, I create several “Show your Work” questions where students take photos of their work for the entire practice. As an example, say an assignment has 10 problems where students practice factoring. I then have question 11 as show your work, upload a photo of your work for #1-10 here and question 12 as show your work, If needed - Upload a 2nd photo of your work here.
This avoids students having to take 10 photos and let’s me see their work. Just another option.