kScenes is a handy viewer for pictures in PNG, GIF, HEIC, JPEG, WEBP, BMP, XCF, TIFF, DCM and DDS formats. These formats can be converted to the format PNG, JPEG, WebP or GIF. kScenes supports resizing and clipping a picture. Moreover, you may create an multiple-page PDF document from pictures.
The app only runs on 64-bit systems. Windows 11 is recommended.