I'm using Acrobat 9 Professional Extended. I need to use the create file from scanner feature. The page size of the document that I am scanning is about 4 x 6. Once I have it scanned, I would like to increase the size of each page so that the font is bigger and it fits correctly on custom 7 x 9 sized pages when printed out. I would also like the text to appear in the center of each 7 x 9 page. What is the best way to accomplish my task?
You have an image contained in the PDF, not renderable text.
Your image is made up of pixels.
To have the image expand to fill a 7x9 area you will have to put the image's scale to something above 100%.
As you do this you will notice the effects of pixalization.
Use Acrobat's zoom tool to zoom in on any given part of the original image. Increase the zoom to observe what happens. What you'll observe may not be what you want. However, for any given image, that's what you have to work with.
Perhaps you could use a copier to enlarge the 4x6 hard copy to something larger? Then use that as the source scan for the image in a PDF.
Be well...
Be well...