ORIENTATIONS AND DIMENSIONS
We require creative for both the horizontal orientation and the vertical orientation of the advert; both orientations should be packaged into a single file.
Horizontal Dimension: 1024px x 748px, Portrait Dimensions: 768px x 1004px
Ads must scroll vertically (up-down), not horizontally (side-to-side)
File size for the combined orientations should not exceed 2 MB in size. This may not be possible if video is embedded within the advert so longer video should be streamed. If this is the case, the video must be hosted elsewhere (NEJM cannot host it).
FILE TYPES SUPPORTED
OTHER CREATIVE GUIDELINES
- Creative must include swipe functionality
- Adverts and the elements that make them up may not contain any references to NEJM unless explicitly approved
- Audio and/or video within the advert cannot automatically play; it must be user-initiated and are subject to approval
- Flash is not supported – due to the limitations with respect to the flash support of Apple iOS it should not be used
- Processor and memory usage – advertisements which apply excessive load on the device CPU or memory should be avoided