Photographs can be uploaded in the following file formats :  JPEG, PNG and GIF.

If you use RAW, TIFF or BMP format when you take photos, you need to first convert your files into one of the three supported formats.

JPEG. JPEG is by far the most popular file format for archiving and distributing images.

GIF. GIF format supports a limited number of colors and can be most useful for drawings and graphs.

PNG. Some say that the PNG file format is better to be avoided as it produces bigger files without much of a benefit over high quality JPEG files. The main advantage of the PNG format is that it allows transparency. Therefore, a PNG picture is especially suitable to be used as a logo for your homepage.

The Maximum file size. How big can my files be? This refers to the maximum size of any one file that can be uploaded to your account. The maximum file depends on your subscription plan and is shown in the Features and Pricing list.


Videos can be uploaded in the following file formats :  "3GP", "ASF", "AVI", "DIVX", "FLV", "MKV", "MOV", "MP4", "MPG", "MPEG", "MXF", "OGG", "VOB", "WEBM", and "WMV".

Video quality and size.  The maximum file size is the only limitation for your videos. You may upload anything up to 10 GB. There is no restriction on the quality of the video nor its length, but the embedded video player is not able to play files with resolution bigger than 1080p - the HDTV standard. Nonetheless, you can download the original videos with their original resolution and play them with your usual video player.
The video formats vary in the encoded file size, quality, properties (metadata), and readability significantly. 3GP is a format designed for mobile technologies, while flv is widely used to play clips on the Internet. The older formats like .avi, .vob, .wmv usually produce larger files with fewer metadata included (like a screen ratio) than the newer formats like .ogg, .webm, .flv, or .3gp.

Related articles. You may want to read which uploader and browser to use or the basics of uploading.