Twitter

Profile Photo – 400 x 400 (Displays 200 x 200)
TwitterProfile

Your Twitter profile photo is the main image that represents you or your brand across the network. It’s going to be seen across the site in a number of places by a number of people so make sure it’s of the highest quality. Here are the places your profile photo will be visible on the site:

On Your Page
The largest display of your profile picture is on your homepage and can be viewed by your followers as well as individuals who stumble upon your page.

In-Stream
A smaller version of your profile picture appears in a follower’s Twitter stream every time you send out a tweet. It’s also going to appear in the stream of your followers’ followers every time that they retweet you.

Who to Follow
Your profile picture is also going to appear next to a link to your page in the “Who to follow” box. This is located directly to the right of your Twitter stream.

Image Guidelines
Square Image – recommended 400 x 400 pixels.
Maximum file size 100 KB.
JPG, GIF, or PNG.

Header Photo – 1,500 x 500
TwitterHeader

Your header photo is the image that spans the top of your Twitter profile page. It’s quite a bit larger than your profile photo so make sure to save it at the highest resolution possible.

Image Guidelines
Recommended 1,500 x 500 pixels.
Maximum file size of 10 MB.
JPG, GIF, or PNG.

In-Stream Photo – Minimum 440 x 220
TwitterInStream

Twitter gives users the ability to attach photos to any of their tweets. However, when you attach a photo to a tweet, Twitter needs to create a separate link for that photo, so ultimately you have fewer characters to work with. The photos that you upload are going to appear in the streams of your followers and the streams of their followers should your photo get retweeted. Photos that are included in public tweets may also appear in certain Twitter search results.

It’s also important to note that Twitter may collapse your photo into a smaller version to fit seamlessly into a user’s stream. In order to make sure that Twitter is displaying the portion of the photo you want followers to see, make sure the width of your image fits the minimum requirements and that your content is horizontally centered.

Image Guidelines
Minimum to appear expanded 440 x 220 pixels.
Maximum to appear expanded 1024 x 512 pixels.
Appears in stream collapsed at 506 x 253 pixels.
Maximum file size of 5 MB for photos and 3 MB for animated GIFs.

Facebook

There is a difference between how things will display on your personal timeline and how things will display in a user’s newsfeed. Make sure that you are choosing dimensions based on where you want the majority of viewers to see your image.

Profile Picture – 180 x 180 (Displays 160 x 160)
FacebookProfile

This is the square photo that appears on your timeline layered over your cover photo. Your profile picture will also appear when you post to other walls or comment on posts.

Image Guidelines
Must be at least 180 x 180 pixels.
Photo will appear on the page as 160 x 160 pixels.
Photo thumbnail will appear throughout Facebook at 32 x 32 pixels.

Cover Photo – 851 x 315
FacebookCover

Your cover photo will only appear in your Facebook timeline, but it is a lot bigger than the profile picture, which gives you more freedom to choose something creative. Where your profile picture might be a good choice for your logo, use this space to post something that highlights your organization or members.

Image Guidelines
Appear on page at 851 x 315 pixels. Anything less will be stretched.
Minimum size of 399 x 150 pixels.
For best results, upload an RGB JPG file less than 100 KB.
Images with a logo or text may be best as a PNG file.

Shared Image – 1,200 x 900
FacebookSharedImage

A shared image is one of the most common forms of sharing on Facebook. These images will always appear on your timeline, and ideally they will show up in most of your followers’ News Feeds — though with the decrease in organic reach, it’s unlikely that everyone will see your post. The more people engage with your post, the more likely it is that the rest of your followers and their followers will see that activity.

Image Guidelines
Recommended upload size of 1,200 x 900 pixels.
Will appear in the feed at a max width of 470 pixels (will scale to a max of 1:1).
Will appear on the page at a max width of 504 pixels (will scale to a max of 1:1).

Shared Link – 1,200 x 627 (Recommended)
FacebookSharedLink

Another great tool in your Facebook belt is the ability to share a link. It’s very similar to posting a shared image, but it gives you even more fields to work with. You can choose to create a shared link with a small square image to the left and text on the right, or with a larger rectangular image on top with text underneath. Whichever ad you choose will permit you more fields to fill out with helpful information (a link headline, a display link and a description of the link) and the shared link will also click-through to the site of your choosing.

Image Guidelines
Recommended upload size of 1,200 x 627 pixels.
Square Photo: Minimum 154 x 154px in feed.
Square Photo: Minimum 116 x 116 on page.
Rectangular Photo: Minimum 470 x 246 pixels in feed.
Rectangular Photo: Minimum 484 x 252 on page.
Facebook will scale photos under the minimum dimensions. For better results, increase image resolution at the same scale as the minimum size.

Highlighted Image – 1,200 x 717 (Recommended)
FacebookHighlightedImage

A milestone is a great time to create a highlighted image. This image is going to be housed on your personal timeline, but it is going to take up a great deal more space than a shared link or image, so it’s a good place to celebrate the victories that keep you going!

Image Guidelines
Will appear on your page at 843 x 504 pixels.
Choose a higher resolution at that scale for better quality.

Google+

Being directly connected to Google search, Google+ can be a great way to increase your organization’s reach to members.

Profile Picture – 250 x 250 (Recommended)
GoogleProfile

Though you upload your image in a square format it’s going to render on your page as a circle, so be wary you don’t choose a photo that cuts out important details.

Image Guidelines
Minimum 120 x 120 pixels.
Recommended 250 x 250 pixels.
Maximum not listed – I was able to upload a 20 MB photo at 5,200 x 5,300 pixels.
JPG, GIF or PNG.

Cover Image – 1,080 x 608
GoogleCover

The Google+ cover image is the biggest photo on your page. It’s a great opportunity for you to showcase your organization and members.

Image Guidelines
Recommended 1,080 x 608 pixels.
Minimum 480 x 270 pixels.
Maximum 2,120 x 1,192 pixels.

Shared Image – 497 x 373
GoogleShared

Google+ sharing is similar to that of other social networks, with one key difference: circles. With circles you can group people together based off of certain criteria that you deem relevant, and then share different images to different circles based off that demographics’ personality.

Image Guidelines
Appears in home stream and on page at a width of 426 pixels (height is scaled).
Minimum width of 497 pixels (will scale the height for you).
Maximum upload 2,048 x 2,048 pixels.

Shared Link – 150 x 150 (Thumbnail)
GoogleSharedLink

A shared link comes with the same ability to choose which circles you want to share with, but the post itself has different capabilities. You’ll still have the ability to type in whatever description that you’d like, but with a shared link you also have the opportunity to link your post to your site. This is going to pull a photo from your site and add it to the post so that your viewers can click through to your page.

Image Guidelines
Shows in the feed and on page as 150 x 150 pixels (pulls in photo from linked site).

Shared Video – Width of 496 Pixels
Just as with links and images you can pick and choose which circles would be best for each video.

Video Guidelines
Shows in the feed and on page as 497 x 279 pixels.

Pinterest

Pinterest can be an amazing social tool for driving referral traffic to your site. This is mostly due to the fact that 90% of Pinterest pages are external links. So it’s very important for you to make sure you’re optimizing your Pinterest page regularly and using proper image sizes for your boards and pins.

Profile Picture – 165 x 165
PinterestProfile

When setting up your Pinterest account you have the option to do so using Facebook, Twitter or email. If you choose Facebook or Twitter, Pinterest will pull in the profile image that you have set there. If you’re using email, or would prefer to use a different photo, you can do that too: just upload a square photograph (the larger the better) and Pinterest will resize it to fit. Like other social sites your profile picture on Pinterest should be something closely tied to you or your brand.

Image Guidelines
Appears at 165 x 165 pixels on home page.
Appears at 32 x 32 pixels on the rest of Pinterest.
Maximum 10 MB (wouldn’t allow me to upload anything larger).

Pin Sizes
PinterestPin

When adding a pin to your board it’s important to remember that Pinterest puts a limit on the width of the image but not the length. This gives you the opportunity to add a photo that’s square or one that will scale to be even taller. Just remember to make sure you’re creating large images because they add more value, not just because you can.

Image Guidelines
Pins on main page appear as 236 pixels (height is scaled).
Pins on a board appear as 236 pixels (height is scaled).
Expanded pins have a minimum width 600 pixels (height is scaled).

Board Display
PinterestBoardDisplay

Creating boards is one of the most important things that you can do on Pinterest. It’s important to make sure you’re using an image that fits the size criteria perfectly. Not only is it important to choose a photo that is enticing to your audience, it’s important to choose one that’s relevant to that particular board.

Image Guidelines
222 x 150 pixels (large thumbnail)
55 x 55 (smaller thumbnail)

LinkedIn

LinkedIn is the world’s largest professional network. Where other social networks may be good drivers of traffic and customers, LinkedIn is a great place for you to connect with other professionals in your area of interest.

Banner Image – 646 x 220 (Minimum)
LinkedInBanner

The banner image is one of the newest and most prominent of the images that you can use on LinkedIn. This image appears when a user visits your homepage. Since this image is located on your homepage it’s likely the visitor is actively searching for your organization, so use this opportunity to reach them.

Image Guidelines
Minimum 646 x 220 pixels.
Maximum 2 MB.
Landscape Layout.
PNG, JPG or GIF.

Standard Logo – 100 x 60
LinkedInLogo

One of the two brand logos that you should be uploading to LinkedIn is the business logo. This is the bigger of the two and is going to show up right next to your brand name on your LinkedIn homepage. This image also appears in the “Companies you may want to follow” section, so the more enticing the photo the more likely the followers!

Image Guidelines
100 x 60 pixels (resized to fit).
Maximum 2 MB.
PNG, JPG or GIF.

Square Logo – 50 x 50
LinkedInSquareLogo

This is the brand image that shows up when your company is searched. Make sure you use something recognizable to your brand to make sure customers know which company they want to click on.

Image Guidelines
50 x 50 pixels (resized to fit).
Maximum 2 MB.
PNG, JPG or GIF.

Career Cover Photo – 974 x 300
LinkedInCareerCoverPhoto

Finding great people to come work for your company is one of the most important aspects of LinkedIn. You can have a separate tab that is solely based on career opportunities at your company. At the top of this page sits a banner that is bigger than any of the other images on LinkedIn. You can use this space to choose a picture that speaks to your company in order to attract some great potential employees.

Image Guidelines
Minimum 974 x 300 pixels.
Maximum 2 MB.
Landscape Layout.
PNG, JPG or GIF.

Profile Picture – 500 x 500
This is the image for individual LinkedIn pages.

Image Guidelines
500 x 500 pixels (resized to fit).
Maximum 4 MB.
PNG, JPG or GIF.

YouTube

YouTube has more than 1 billion unique users every month and is available on hundreds of millions of devices. More than 1 million brands have already realized that YouTube is a great opportunity to reach their fan-base.

Channel Cover Photo – 2,560 x 1,440
YouTubeChannelCover

Spice up your YouTube channel with some “channel art.” When users click through your YouTube videos to your channel, some appealing images could entice them to stay on your page longer and watch more of your videos.

Across Different Devices
There are a lot of different platforms and devices that users can stream YouTube on so it’s important that your brand has a photo optimized for each one.

Display Sizes
Tablet display: 1,855 x 423
Mobile display: 1,546 x 423
TV display: 2,560 x 1,440
Desktop: 2,560 x 423 (1,546 x 423 pixels are always visible)

Video Uploads
YouTubeVideoUploads

Uploading your content to YouTube is the one of the most important parts of establishing your presence on the site. Videos can tell viewers something about you as a person, or it could show off something that your business might offer.

Video Guidelines
Videos must maintain a 16:9 aspect ratio.
In order to qualify as full HD, your dimensions must be at least 1,280 x 720 pixels.

Instagram

Instagram is one of the most popular photo-sharing social networks with a user base of over 100 million people. It’s a great place for you to take and share fun or creative photos that show what you or you’re all about.

Profile Picture – 110 x 110
InstagramProfile

Instagram is based on photographs, which should be an indication of how important it is to pick a great one for your page. Instagram will automatically create a header that cycles through some of the photos that you post to the page, so it may be best to use your profile picture to create a static image of you or your brand.

Image Guidelines
Appear on your home page at 110 x 110 pixels.Square photo – make sure to maintain an aspect ratio of 1:1.

Photo Thumbnails – 161 x 161
InstagramThumbnails

When someone goes to your page they’ll be presented with all of your photos arranged in rows of thumbnails. These smaller renditions of your photos will expand when clicked, and will include a place for people to comment.

Image Guidelines
The thumbnails will appear on the page at 161 x 161 pixels.
Square photo – Make sure to maintain an aspect ratio of 1:1 ratio.

Photo Size – 640 x 640
InstagramPhotoSize

Instagram is all about the photos. These pictures are going to appear in the feed of all of your followers. Instagram allows photos of a higher resolution if they are taken from the native Instagram application. If you decided to upload a photo taken from any other device the resolution will be much lower.

Image Guidelines
Instagram still scales these photos down to 612 x 612 pixels.
Appear in feed at 510 x 510 pixels.

Tumblr

Tumblr is customizable social site that lets users effortlessly share anything that they want. Due to the fact that almost everything is sharable, it isn’t hard to imagine that there are currently over 189 million blogs that have churned out more than 83 billion posts.

Profile Picture – 128 x 128
TumblrProfile

Although there is a profile photo associated with your Tumblr page it doesn’t appear very frequently throughout the site. It will appear as a thumbnail adjacent to your posts within a follower’s feed. It also appears next to the buttons to follow you on Tumblr when someone visits your page.

Your profile photo will also appear somewhere on your Tumblr profile page. Whichever theme you choose is going to play a part in where the photo appears and how large it is. Some brands choose a large image while others keep them subtler. Just make sure to mind the minimum and pick an image that fits not only your brand, but that also fits your page’s layout.

Image Guidelines
Minimum 128 x 128 pixels.
JPG, GIF, PNG or BMP

Image Posts – 500 x 750
TumblrImagePosts

These are the posts that you send out to your followers that will also appear on your page. Due to the fact that Tumblr is so customizable and each theme is so different, not all people are going to want to post the same size photos.

Image Guidelines
Dash image sizes max at 1,280 x 1,920, and show in feeds at 500 x 750
Images can’t exceed 10 MB.
Animated GIFS must be under 1 MB and max at 500 pixels.