You are able to auto apply filters the all images when exporting then hard disk. This is very easy as explained below:
First you can choose a FilterSet from the combobox as seen in the above screenshot (in there you have a set chosen called Color Modification). Of course it makes sense to create your own FilterSet when you experiment here (click on EDIT).
 Resize (percent): change size of the image in percent (<100% to shrink, >100% to enlarge)
 
 Resize (pixel): change size based on a fixed size in pixel (keep aspect ratio optional)
 
 Add Border: adds a border to the image of your chosen color
 
 Shave: removes certain parts from the borders of the image
 
 Rotate: rotates the image to left/right in degree
 
 Flip Horizontally: flips the image horizontally
 
 Flip Vertically: flips the image vertically
 
 Swap Red↔Green: swap all red colors against green once
 
 Swap Red↔Blue: swaps all red colors against blue once
 
 Swap Green↔Blue: swaps all green colors against blue once
 
 Normalize: inspects the lightest and darkest part of the image and tries to change colors to have all the color spectrum there is
 
 Grayscale: converts all colors to black and white (based on human eye)
 
 Contrast: changes the contrast
 
 Brightness: changes the brightness
 
 Saturation: changes the saturation
 
 AdjustHLS: adjust the Hue, Lightness and Saturation
 
 AdjustHSV: adjust Hue, Saturation values
 
 Blur: blurs the image
 
 Sharp: sharpens the image
 
 Text Label: adds a text to the image in your specified font name and color (transparent background)
 
 Watermark Image: puts an image as watermark of the current one with a set transparency and position
 
A filter can also be applies for a single image when you right click on it in the listing and choose “Use Filter”.