I have a designer from afar sending me pdf's for print. We don't print pdf's directly, we import them into Corel because 9 times out of 10 they're not sized right or have prepress marks etc. Why do the photos come in like a puzzle? This is in wireframe btw.
That means the PDF was created with incorrect settings, such as "compatibility with Acrobat 4" foex example. Older versions of Acrobat doesn't support transparencies and lens, then convert it as bitmpas, and it can't handle big bitmaps, and split each bitmap on sevaral parts
Ask for create PDF using compatibility with Acrobat 8.0 or higer, If they use Adobe software they can use PDF X/4 as preset
I can't get the designer to divulge what program is being used. Took three days for them to understand what I meant by "convert all text"