As was said, this is better done on a computer platform and could never be done on a mobile device with the precision and functionality that a professional document needs. ( the ability to add a notes layer to mark up files sent to us so they can be returned to the sender to modify from their end without having the notes actually embedded into the images, the ability to resize and rearrange existing sections in the documents as well as modify verbiage in existing text boxes, the ability to replace and resize and reposition images within the documents.) what we DO NOT need is an app to create documents from scratch. Something with fully functional viewing capabilities, but basic limited editing capabilities. a lite version that can be used on the go, so our marketing people and clients don't have to wait until we have a computer available to sit and work on. What people truly need is a happy medium. Because of the worries of bad reviews and backlash from the community, it's become an all or nothing situation when it comes to mobile platform releases. This is the problem with most software developers. As with the other mobile apps, the ONLY supported file system that it requires are the actual InDesign files and the ability to use images and pdf's in editing. The other is the support of hierarchical file systems. Just the names and as chosen by the user they become available within the projects. You do not need to preinstall any actual font files. I know that adobe has enough cloud space to add a code snippet directing the app to take the specified font in the app as people use it and giving it a font face attribute, linking the font to the app. As with html5 coding you have open font and font face tags referring them to a css file telling them where to find the font online to sho it. There is a very simple solution for this. You mention one of the hurdles being unsupported fonts. We do not even need a fully functional version with all of the bells and whistles, but a touch optimized workspace ( as you already have available within the pc software) to be able to edit files sent to us on the fly. I need software that I can load onto my iPad Pro. Taking a computer onto these job sites is not a feasible option. I live on planes traveling the country from job site to job site. I work for a large national GC as a project manager and am also a manufacturer/ distributor of my own product. The real issue comes with people with professions like me. The real issue isn't whether or not a ps or Mac are noting.

Indesign ipad air