We recommend that you compress the picture as much as possible while retaining the resolution to improve performance. This can be done using https://tinypng.com/ or another tool of your choosing.
See the table below for recommended sizes.
Please note that Pronestor is shown in a browser and that pictures get scaled based on your resolution.
For example, the login picture we use as default in the solution is 600px x 825px but you rarely see the full picture, as shown here:
|Planner||format||size (w x h)|
|Login page||png/jpg||600px x 825px|
|Room Booking Panel - background||png/jpg||1280x800|
|Room Activity Panel - background||png/jpg||Fit screen solution|
|Meeting Activity Panel - background||png/jpg||Fit screen solution|