Uploading Media
When you upload media, Tumblr resizes it automatically into several discrete sizes - see below:
- {Video-500} Embed-code for the content of a Video post. 500-pixels wide.
- {Video-400} Embed-code for the content of a Video post. 400-pixels wide.
- {Video-250} Embed-code for the content of a Video post. 250-pixels wide.
- {PhotoURL-500} URL for the photo of a Photo post. No more than 500-pixels wide.
- {PhotoURL-400}URL for the photo of a Photo post. No more than 400-pixels wide.
- {PhotoURL-250} URL for the photo of a Photo post. No more than 250-pixels wide.
- {PhotoURL-100} URL for the photo of a Photo post. No more than 100-pixels wide.
- {PhotoURL-75sq} URL for a square version the photo of a Photo post. 75-pixels by 75-pixels.
The original file is discarded as far as I can tell. If you need a larger image, you must specify the custom width within the tag.
Ex. IMG src=”path/to/image” width=”692”
Note - your image may be subject to re-scaling degradation.