It will be a waste of time to convert WMV to PNG image files one by one. If you take WMV to PNG Batch Converter as your helper, the work will be done in a short while. For WMV to PNG Batch Converter supports users to convert WMV to PNG in batch.

The application is free for downloading and evaluating by clicking here. If you want to use all functions without any limitations, you can buy a single-user personal license for it via clicking here. For different purposes, you can also buy single-user commercial license, multi-user personal license or multi-user commercial license at the website according to your needs.

You can see the user interface (UI) of WMV to PNG Batch Converter in Figure1, in which there is a video file list in the middle. You can add video files in the list by clicking "Add Video File(s)" button or dragging the files from the disks to the list. You can also right click the mouse in the list and choose "Add files" option in dropdown list. "Remove" button is used to remove or delete some video file, while "Remove All" is for removing all the files at a time.

Then you can set the parameters to the output image files in "Option" dialog box showed in Figure2 by clicking on "Options" button in Figure1. "Start (Sec)" and "End (Sec)" spin boxes allow you to set the start and end time of video files when you want to convert a part of WMV to PNG. If you want to change the image resolution, please set the width and height in "Size (1 to 6000)" spin box. In "Quality: (0.01 to 255)" spin box, you can control quality of output image files. Please choose "Portable Network Graphics (*.png)" as output format in "File Format" combo box. To get different numbers of output images, you can set the capture interval in "Interval (Sec)" spin box. Then the application will capture one image per specified second.

You should click "OK" button to save all the changes and click "Convert" button in current dialog box to open "Browse for Folder" dialog box in which you are able to find a location for the target files in existed or new created folder. Then click "OK" button.
The green progress bar at the bottom of Figure1 will remind you the conversion progress and the bar will be empty again when the conversion is done. Then you can browse your target files. Please see Figure3.