Hi all, I am designing a PDF document for the ipad that is a resource developed through a community planning process. I was initialy asked to develop a series of posters and now I am looking at making an ipad friendly document as many staff are beginning to use these for their mobile reference library. Only purchased the ipad2 and upgraded it to IOS5 yesterday so in the usual steep weekend learning curve. Initial discoveries include: - links work in ibooks, but not adobe reader - don't make any links / buttons close to the edge of the document. top - activates the toolbar left & right - activates page chage bottom - activates the thumbnail viewer Despite this intial frustration (that my design concept is flawed), the draft concept document feels zippy and logical - although the ibooks pdf experiencde doesn't give user 'hints' about what's on the following page so I'll have to try and design graphical hints into the document I guess. I like the look of the indesign folio builder outputs but I would rather develop my skills in created content without any external overheads ($). Has anyone come across some HCI (Human Computer Interface) giudelines for developing content for the ipad? I'll attach my development sample to this page if you want to see my failed design.