In a post Davide Coleman gives us the size for Facebook covers and photos.

Facebook has made some changes to its image sizes and layout recently, so here’s my updated 2013 version of the guide for Facebook image and photo sizes and types.

Cover Photo

The cover photo is the large panoramic image space at the top of the timeline. It’s displayed at 851px wide by 315px high. The image you upload must be at least 399 pixels wide–one that’s at least 720 pixels wide will work best. You can upload an image already cropped and resized to precisely those sizes. Or you can upload a larger image, in which case you’ll be given a chance to move the image to choose the crop you’d like displayed.

Profile Image

The Profile Image is now the smaller, square at bottom left of the header, overlapping the cover photo. In the examples above, it’s my shadow. Its final display dimensions are 160px by 160px, but you have to upload an image at least 180px by 180px. The thin white border is added automatically and there’s no way to remove it. The profile image will display 23 pixels from the left side of your cover photo and 210 pixels from its top.

Profile Image on the Timeline

The profile image that appears next to your name on comments and posts is the same image but is automatically scaled down to 32px by 32px.

Shared Link Thumbnails

The thumbnail for shared links is sized to fit in a box 155px wide and 114px high, regardless of the orientation of the original image.

Photo Thumbnails on the Timeline

When you upload an image to the timeline, by default a large square thumbnail is automatically generated and displayed on the timeline at 403 px by 403 px. The center of the image is automatically chosen by default, but you can reposition the photo by clicking on the pencil icon to edit, then choose Reposition Photo and drag. You’re limited to dragging along the longest dimension. Be sure to hit the Save button once you’re happy with the positioning.

Full-Width Photo Thumbnails on the Timeline

You can also make the thumbnail span both columns of the timeline. After you add your photo, hover over the top right of that post’s box. You should see a small down arrow (it’s not very obvious) that launches a dropdown menu. From that menu, choose Highlight.

What is the Biggest Photo You Can Upload to Facebook?

Facebook nominally has a maximum upload size of 2048px wide, but the practical limit is actually much higher. I’ve tested with images 3000px wide and a 6000px by 4000px image. There was no problem in either case–they uploaded just fine and displayed normally. Which makes sense–most cameras and phones these days take images far bigger than 2048×2048, and expecting the user to resize every image before they upload would make things unnecessarily complicated (or, in business jargon, would create too much friction), and people would become less likely to post images.

At the moment, there are limits to the usefulness of uploading images bigger than 2048px. Most of the visitors to your page don’t have larger than a 27-inch monitor–a 2048px image with the design elements Facebook puts around it will fill up most of the screen on a monitor that size. It might become more useful when very large high-density displays like Retina screens become more common.

Image Quality Issues

Something to be aware of is that Facebook compresses some images pretty aggressively when you upload and display them. It makes sense–naturally, they want to speed page loads and reduce bandwidth by applying as much compression as they can get away with. To my mind, they compress too much, but how noticeable it is will depend on whether things like the range of colors in your image and amount of detail in your photo. In the examples above, the JPEG compression is far more noticeable in the montage version than in the Sydney Harbour Bridge version. I set the quality and sharpening settings the same for each in the originals before they were uploaded. Some users have reported that images with lots of reds and oranges seem to show the effects of the compression more than ones with blues and greens, but it depends a bit on the actual image.

It also seems to depend on what kind of image you’re displaying. Photo gallery images seem to have less compression applied in displaying than do design elements like the cover photo and profile image.

There are some things you can do in prepping the images before uploading that can help reduce the chances that your image will come out looking crappy. Upload images that don’t have a lot of compression already applied. For jpegs, for example, try keeping the quality setting at 80 or above–Facebook is going to compress it again anyway. If you’re using software that factors in colorspace (like Lightroom or Photoshop), use sRGB colorspace. And uploading images that are already resized to close to or at the target display size and not overly sharpened seems to work well.

Protecting Your Images

Once you’ve shared an image on Facebook you’ve pretty much given up any control over protecting it. Others can download the photo simply by right-clicking. There are also dedicated apps designed specifically for downloading Facebook photos in bulk (like this one or this one).

And, annoyingly, Facebook strips out all IPTC metadata when you upload the image, meaning that any embedded copyright information, location information, or captions are removed (and that includes PLUS metadata). It also renames the image file, so adding copyright information to the filename doesn’t work either.

So your options are:

1. Share your photo and not worry if someone “borrows” it.
2. Share your photo and add a watermark (recognizing that people still might “borrow” it).
3. Don’t upload it to Facebook to begin with.

Cheat Sheet

Facebook’s Terms of Service

Just because you can add photos to Facebook doesn’t necessarily mean you should immediately start uploading your entire image archive. If your photos have value to you or you want control over how they can be used, I strongly recommend taking a careful look at Facebook’s Terms of Service. They’re closely watched and often controversial. And to complicate matters, it’s not always clear whether you’re looking at the latest version.

In early September 2013, Facebook changed its Terms of Use again. The new language allows Facebook to do more with your photos (and other content), including selling them without compensating you. As the American Society of Media Photographers, one of the largest and most respected photographers’ trade groups (and of which I’m a member), put it:

The new Facebook Terms of Use have been modified to allow the company to sell virtually anything that is uploaded to the service, including all your photos, your identity and your data. Facebook has also explicitly removed the privacy protection from the commercialization rights.

This means that any photos uploaded to Facebook may be sold, distributed or otherwise commercialized with no compensation to the photographer. These new terms of service go into effect today.

. . .

Here’s the most important language. (Strikethrough indicates language that is being removed. Bold text is used to indicate the new additions.)

“You can use your privacy settings to limit how your name and profile picture may be associated with commercial, sponsored, or related content (such as a brand you like) served or enhanced by us. You give us permission to use your name, and profile picture, content, and information in connection withcommercial, sponsored, or related that content (such as a brand you like) served or enhanced by us, subject to the limits you place. This means, for example, that you permit a business or other entity to pay us to display your name and/or profile picture with your content or information, without any compensation to you. If you have selected a specific audience for your content or information, we will respect your choice when we use it.“