Provide a popup that will display an overlay of all sheets in a page series to allow easy checking for things that should be the same on all sheets. Allow the user to pick an area on a page, and enter a page range. A popup window would display all those sheets overlaid with the user able to pick the mode such as multiply, darken, difference etc. The window would be a pair of views with one side being the total overlay view, and the other showing one page at a time allowing the user to flip through each page. The user should be able to pan and zoom with the mouse to adjust the view area.
An additional feature would be in this mode to allow the user to select a page area on one sheet, and ask BB to list which sheets are different. There would be an option to perform a graphical difference check or an OCR difference check. Below the views a dialog box that would output the findings of which pages were different. When the user clicks on each page in that list, the single page view would show that page with the difference highlighted.
This feature should allow comparison between two files as well, without creating a new pdf file like the compare docs function. This is just for a quick study of areas on a page, like checking if every page has a header / footer, if all the titleblocks are the same, etc.
Provide a way to print out a pdf report from this function that shows the current views and findings list. Provide a way to save the settings to allow it to be run again on different documents. Provide a way for the user to change the sheet range/files selected and a refresh button.
