i want to do a simple book of old scanned handwritten letters my grandfather wrote during WWII, nothing written by me, just his scanned letters. His letters are various sizes, the largest being 8x11. I have scanned each page of each letter as a single jpg. lt seems like LULU wants you to upload just one file for your book. I have about 200 images of letters i'd like to upload. is this a no go then? If it would work, do I select a template of 8x11 and use that? If it is better to have the whole thing already prepped as 1 whole document, with one page of each letter for one page in the book, does anyone know how to create a bunch of scanned jpegs into one PDF doc that would meet the specs Lulu requires? Thank you.