399 pixel width?

Most people knows facebook is constantly changing. The latest addition is Timeline, for this reason there are many 399 pixel width image searches.

Because 399 pixel width is the minimum size required by facebook for the cover photo. A picture of less width isn’t allowed as cover image, but if It is wider facebook will respect the width of the original image but not the height which will be cropped if it’s bigger than 150 pixel. So facebook will let you drag the image to reposition offering a preview and giving you the ability to move it as you like.

Perfect proportion for a cover photo is 2,66 aspect ratio, this is the result of 399 pixel width/150 pixel height. So if your picture is 3000 pixel width you just need to calculate 3000/2,66 = 1127 high. Now you know how high should be your picture.

Cutemosaic suggests to upload an image of at least 850 pixels wide by 320 pixel height because lower dimensions mean losing quality and then the image will look blurred or blocky. Also if the image is less than 150 pixel high facebook won’t respect the width of the original image cropping it. This makes me wonder a few things: How can I know the width of my image? It’s so easy as opening it with any image viewer, on the bottom bar usually the width and the height are shown, as in the image below:

And How will the cover image look after facebook reposition? Here is an example:

At cutemosaic you can create a personalized cover photo, just go to Cutemosaic, upload a picture, select your favorite mosaic type and receive your photo transformed into a mosaic. You can also make a large mosaic and crop a portion you like, it’s easy, just order a high resolution mosaic, when you receive your mosaic open it in a photo editor like photoshop or gimp and follow this steps:

1. Toolbar: View—> zoom—> 1:1

2. Toolbox: Rectangle select tool

3. Toolbar: Image—> crop to selection

4. Save your image

Video tutorial here

Cutemosaic presents you some images you can use as cover image, just go to flickr and use them for free.

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