Here are all the correct file Dimensions:

CREATE AN ARTICLE:
Digital:
Indesign File Size: 2048 x1536 pixels (iPad 3)
300 dpi

Print:
.5″ BLEED on all sides (unless Spread)

FILE SUBMISSION TECH SPECS:

File Format: .png

3D File Formats: .fbx, .dae (collada, basic fuctionalities), .obj, and .md2

Video Format: .mp4

Audio File Format: .mp3

FULL PAGE AD Dimensions:
Print: 5.5″h x 4.125″w [add an additional .25″ Bleed around page]
Digital: 2048h x 1536w pixels [No Bleed]

2-PAGE AD SPREAD Dimensions:
Print: 5.5″h x 4.125″w [add an additional .25″ Bleed around each page]
Digital: 2048h x 1536w pixels [No Bleed]

1/2 PAGE AD Dimensions:
Print: 2.75″h x 4.125″w [add an additional .25″ Bleed around page]
Digital: 1024h x 1536w pixels

STICKER Dimensions:
1.3″h x 1.5″w

APP BILLBOARD BANNER Dimensions:
???? pixels