Short-form batches move faster when every frame shares the same 9:16 canvas and file weight stays under control. Resize a folder of stills or covers in one pass, compress, then ZIP before you hit Studio or your phone.
Follow the TikTok vertical workflow (upload → resize → compress → checks → ZIP), then upload in TikTok Studio or the TikTok app.
In Bulk Resize, pick TikTok Vertical (9:16) (1080×1920). More context: TikTok image resizer.
Then run Bulk Compress. If uploads fail, see listing images too large to upload and batch vs one-file compressors.
All channels: Platform solutions hub.