A) The PDF editor module, which provides the following functionality: - Open and navigate any PDF file. Navigation options include thumbnails and pages. - Preview PDF file. - Ability to annotate, add and save comments directly inside the PDF file. - Provide an option to create any PDF file from a basic template. - Draw tools to perform the following operations: + Draw a rectangle filled + Draw a rectangle not filled. + Draw a circle filled. + Draw a circle not filled. - Eraser to remove any annotation inside the PDF file. - Color selector for the annotations: texts, rectangles or circles. - Undo/Redo. - Annotate; to create/add and save comments directly inside the file. - Compatibility with any PDF file & Acrobat Adobe. B) The file manager module, which provides the following functionality: - Home directory when you first load the file manager. - Operations with files: copy, move, create. - View the file properties: name, size, date. - Light and Elegant client UI. - Document preview support. The subscription inside the app consists on the following: - The length of the subscription is 1 month - The price of the subscription is $0.99 - The subscription will be auto-renewed every month so that you can continue enjoying the app without ads. - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - No cancellation of the current subscription is allowed during active subscription period - The privacy policy and terms of use of our apps are in http://www.blackhawksystems.eu/website/policy_en.html