Link	Portable Document Format (PDF)	HTML	PostScript	Plain text	DjVu	ePub (IDPF)	eReader	Kindle	Mobipocket	FictionBook
Filename extension	.pdf	.html	.ps	.txt	.djvu	.epub	.pdb	.azw	.prc, .mobi	.fb2
Open standard	Yes	Yes	Yes	Yes	Yes	Yes	No	No	Yes	Yes
Features
DRM	Yes	No	No	No		Yes	Yes	Yes	Yes	Yes
Image	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes
Sound	Yes	No	No	No	No	Yes	No	No	No	No
Video	No	Yes HTML5	No	No		Yes HTML5
Interactivity	Yes	No	No	No	No	Yes Javascript	No	No	No	No
Word wrap	No	Yes	No	Yes	No	Yes	Yes	Yes	Yes	Yes
Embedded annotation	Yes	No	No	No		-	Yes	Yes	Yes	Yes
Bookmarking	Yes	No	No	No		-	Yes	Yes	Yes
Supporting hardware
Apple iPad	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Android Support	Yes	Yes	No	Yes		Yes
Amazon Kindle 2, DX	Yes	No	No	Yes	No	No	No	Yes	Yes	No
Kindle Fire	Yes		No					Yes
Barnes & Noble Nook	Yes	No	No	No	No	Yes	Yes	No	No	No
Sony Reader	Yes	No	No	Yes	No	Yes	No	No	No	No
Kobo	Yes	Yes	No	Yes	No	Yes	No	No	Yes	No