SideBySideViewer Manual


This is an application is used to view images side by side in a traditional book style layout. One can drag images onto the app to add them to the list to view. The arrow keys can be used to navigate the image list. There are two display modes. The first is a window with a file list and other GUI controls. The second is a clean full screen view that only shows the images. One can toggle back and forth to full screen mode with the return key. Images supported are common image formats like jpegs and pngs.


There are two modes in which to run this application. The first is a preview window with some GUI controls that are used to organise what images are viewed. The second is a full screen window that hides everything and only shows the images.

One can switch between modes by pressing the return key or pressing the Fill Screen button.

List Management

When not in full screen mode, there is some file management GUI controls on the left of the window.

The largest GUI control on the left is a list where the names of images are shown. One can add files to this list by three means. The first is to drag files onto the application icon. The second is to drag onto the file list itself. The third is to click on the + button below the file list, which will use a standard open file dialog.

Images can be removed from the file list all at once by clicking the - All button.

For more control, one can select one or more files in the file list and pressing the - Selected button.


One can jump to any image in the file list by selecting any item in the file list. The preview area to the right will update to match the selection.

Above the file list are four buttons used to navigate the file list in sequence. The ^ button will step one file backwards through the file list. The v button will step one file forwards through the file list.

The double arrow buttons step two files at a time and depend on the Flip page order preference setting.


Recursively scan through folders will look through what was dropped onto the app. If any folders are found, then these will be opened and further scanned. This will continue until the entire folder structure is scanned and all the image files found added to the file list. With this option off, only the files dropped directly onto the application will be opened with any folders being ignored.

Clear file list when adding new files will remove all previously added images when adding new ones. This is just like using the - All button before adding images.

If Loop to start is off then the stepping through the image list will stop when it reaches the start or the end. Turning this on will cause the stepping to loop around to the other end of the file list.

If Flip page order is off then the images will be ordered like a big scroll from left to right.

So one would have images ordered like:

1 2 3 4 [5|6] 7 8 9

So if the >> button is pressed the selection will move forwards through the image numbers like:

1 2 3 4 5 6 [7|8] 9

On the other hand, turning the Flip page order option on will cause the images to form a scroll from the right to the left like:

9 8 7 [6|5] 4 3 2 1

So, in this case, if the >> button is pressed the selection will move backwards through the image numbers like:

9 8 7 6 5 [4|3] 2 1

Background colour will change the colour that image viewing area is erased to.

Hide cursor when in full screen will make the mouse cursor disappear when entering full screen mode so that it doesn't interfere with the experience. Exiting full screen mode (by pressing the Return key) will make the mouse cursor re-appear.

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