I have published the 6 pages from corel draw to PDF but the pictures are pixilating and I resized the pages to fit pictures.

Was any of the artwork actually created in CorelDRAW? When I open pages of the PDF in Adobe Illustrator the artwork on each page is a flattened, pixel-based image. Each image is pretty low in resolution too. Using the Publish to PDF export filter won't do anything to change the nature of a pixel-based image -except maybe degrade it further, depending on the image compression and re-sampling settings used.

Everything is supposed to be an image, even the text?

The images would probably work with low resolution, but not the text.

So what you need to do is separate that and do the typesetting in a layout or vector app.

Are you really referring to CorelDRAW? This is the Adobe Illustrator forum.