I have tried Moini's suggestion of hitting CTRL U to ungroup the contents of the PDF, but I just ended up with a 'mess', which I was unable to edit. This isn't worth the aggravation that I've experienced, and I now will look for a graphic designer who can help me to complete my project. One thing th...

Thanks for the replies. When I get home from work, I'll open the file in Inkscape to see if I can ungroup it's contents for editing. I have attached the PDF file in question here as well, if that helps.

I am a complete beginner when it comes to graphic software/editing, so please bear with me. A friend helped design a page for me, containing mostly text and a couple of small images, so I can have a sheet of vinyl cut to make a spray paint mask stencil. Some of the text needs resizing/editing, and m...