Choosing Images

AntiDitto can be used to manually manage your image collection or can be used to automatically select all duplicates for you.  Once images are selected, you can process the selected ones or all the unselected ones.

Available actions

For each image group and for each individual duplicate image, you can take one of many actions.


This will open the selected image in the default image viewer on the computer.  This option is available in the context menu when right-clicking an image group or duplicate image.

Open With

This will launch the Open With Windows dialog to choose the program to open the selected image.  This option is available in the context menu when right-clicking an image group or duplicate image.


This option is only available when right-clicking a duplicate image.  The option will be enabled if the duplicate image is currently selected.  Choosing this option will remove the selection from the image group.  Use this is you have made a manual selection, but you want AntiDitto to replace your selection with an auto-selection choice.


Removing an image group or a duplicate image excludes it from any processing actions.  Use this when you don’t want to move or delete an image.

Move To

Move To lets you exclude an image group or an individual image to a chosen folder.  Moving an image group moves all duplicates to the same folder.  If they are named the same, as when they are from different source folders, the files will be renamed in standard Windows format, by appending (1), (2), etc. to the filename.


Delete will exclude the files from further processing by deleting them from the hard drive.  Image groups and individual duplicate images deleted this way will always be sent to the recycle bin.

Performing actions

Image group actions are performed by either selecting an image group by clicking it.  The image group will be highlighted.  The actions are found under the Edit menu.  Additionally, you can right-click any image group and choose the actions from the context menu.

Duplicate images only have the right-click menu available for actions.  You first have to select and image group, then you can right click individual images to take an action on.  If you remove all duplicates, meaning there is only one image left, that image group will be removed from the image group panel and will not be eligible for further processing.  As such, do not delete all duplicates through the duplicates panel, because one will be left behind.  Instead delete the entire image group.

Manually choosing a keep image

You can choose which image of a set of duplicates to keep simply by clicking it in the duplicates panel.  The duplicate image will be highlight and remembered for later processing.  Any manually chosen keep images in an image group will not be changed by the auto-selection function.  To clear your manual selections choose Clear Selected from the Edit menu.

You cannot mark multiple images for keeping.  If you want to keep multiple images, you can right-click a duplicate image and choose Remove.  This will exclude the image from processing, however that will leave the image in its original location, so it will be unavailable of you want to use the Move function.

Automatically choosing keep images

Use the Auto-select dropdown list to apply a selection based on the criteria chosen.


The Auto-select choices are:

  • Filename – The duplicates are sorted by filename and the first is chosen
  • Biggest – The duplicates are sorted by filesize and the largest file is chosen
  • Smallest – The duplicates are sorted by filesize and the smallest is chosen
  • Earliest – The duplicates are sorted by creation date and the earliest is chosen
  • Latest – The duplicates are sorted by creation date and the latest is chosen

Any manually selected duplicate images will not be changed.  You can verify AutoDitto’s selections by clicking an image group.  The duplicates panel will show the images with the chosen one highlighted.

You can create your own auto-select profile, which can include multiple criteria.