ResizePixel is a free online image editor where simplicity is essential feature. It is designed to crop, resize, flip, rotate and convert images to various formats. The service is mobile-friendly, fast and easy to use.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Tapas - Tapas – Comic, Novel and Stories is free to use digital comic application by Tapas Media that puts tens of thousands of comics and web novel on your mobile device.
Ralpha Image Resizer - High-speed image batch conversion tool
GlobalComix - Professional Comics Publishing
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Comixology Unlimited - Netflix for comics and graphics novels by Amazon