Open IrfanView with one of the image, try to crop it correctly, save it and get the width and height (and the X and Y offsets, if needed) of the final image.
In IrfanView
- File, Batch Conversion/Rename...
- Select "Batch conversion" or "Batch conversion - Rename result files" accordingly
- Check "Use advanced options (for bulk resize...)
- Click "Advanced" button
- A popup window (Set for all images:) appears
It depends on how you scanned, you should crop all images first. In my case, all the image can be cropped the same way, therefore, if I rotate the images first, I may need to crop the rotated images differently
- Uncheck any options that are not applicable
- Check "CROP"
- Enter the Width and Height (from the above)
- Enter the X-pos and Y-pos, if necessary
- Click "OK"
- Uncheck "CROP" and any other options that are not applicable
- Check "Fine rotation"
- Enter "180" (i.e. to rotate left/right twice)
- Click "OK"
- Select the files from the top right windows, click the "Add" or "Add all" button. Be careful if the order of the images is important (if you rename the file), the last selected file is always on the top. You will need to change it in the "File name" text box or move it in the "Input files" window
- Change the "Name pattern" (if you want to rename the file and in a specific way)
- Enter the "Output directory for result files"
- Click "Start Batch"
