WeVideo's slideshow maker supports the following types of video files: 3GP, 3GPP, AVI, DIVX, DV, FLV, M4V, MJPEG, MKV, MOD, MOV, MP4, MPEG, MPG, M2TS, MTS, MXF, OGV, WEBM, and WMV. We support the following types of image files: JPG, GIF, PNG, PDF, TIFF, BMP, and WEBP.