2 Pic

2 Pic is a small application that lets you perform various editing operations on two pictures at the same time.
The program contains a standard interface that is not impressive in any way, but it is easy to navigate through. You can open a left and right image by using the file browser (the "drag and drop" method is not supported).
So, you can apply modifications either for the left or right image - merge, overlay, horizontal or vertical line scheme, fade (horizontal, vertical, diagonal, radial, spiral), aerosol (fading, granular, granular merged, smeared; circle or square) and frames.
But you can also apply effects (watery, distortion mirror, foggy, granular, color shade, mosaic, JPG quality, negative, rotate, engraving, sharpen, blur) and change the properties (adjust contrast, brightness, color saturation, illumination).
In addition, you can switch colors (to another color or to the other image), add text (optionally change the font, font style, size and script), use color selection, resize images or place them side by side (horizontal or vertical orientation; adjust fading).
Furthermore, you can use the "Undo" and "Redo" buttons (for each image), zoom in and out, save results in the BMP, GIF, PNG and other types of format, set file associations, and more.
The program uses a low-to-moderate amount of system resources, includes a user manual and we haven't encountered any kind of problems during our tests.
On the other hand, the user interface could definitely use some improvements. Also, when you make a modification to the image, you have to use the "Undo" button each time to revert changes before attempting another editing maneuver. Otherwise, the last modification will be applied to the previous one (not to the original image).
All in all, 2 Pic is a very good tool for processing two images simultaneously and we strongly recommend it to all users.