greetings from PrestoPhoto and thank you for your interest.

Yes, text and pictures can be used on our mini books :)

We prefer one complete PDF or separate .jpg files. We recommend your images be at 300 dpi.

For all our trim sizes we recommend you make the cover images as well as the interior page images 1/4" larger than your book size. For example if you plan to create an 8.5x11 book the cover image as well as interior pages would be 8.75x11.25 (at 300 dpi).

Most importantly, keep all important items (people, heads, text,borders) away from the outer 1/2" on all sides.

Here is a page that may help
http://www.prestophoto.com/wiki/index.php?structure_id=303

We trim 1/8" on all sides and just keep in mind an 1/8" is a greater percentage of the book for our mini books than it is for say an 8.5x11 book. In other words 1/8" is a greater percentage of 5" than it is of 8.5". Does that make sense?

I want to make a 3.5" x 3.5" minibook with pictures on one page and text on the other (in some cases, a full page of text). There are also some pages with small pictures surrounded by text.
It is a self-help book that people can put in their bags or pocketbooks...IS THIS POSSIBLE?