With more than 40 million members, Flickr is the most popular image hosting website. If you are one of its users, then Windows Live Photo Gallery is the application you need to easily publish, edit and replace your pictures on Flickr. In this article, I will show how to integrate Windows Live Photo Gallery with Flickr and how to publish pictures on this website, directly from the comfort of this desktop application.
Authorize Windows Live Photo Gallery To Publish on Flickr
If you have not published any pictures before, you need to first authorize Windows Live Photo Gallery so that it can publish using your Flickr account.
To do this, open Windows Live Photo Gallery and select some photos you want to publish. Then, click on the Flickr button from the Share section of the Home tab.

If you are not signed in with your Windows Live ID, you are first required to sign in. Enter your Windows Live ID and password. Then, click the "Sign in" button.

NOTE: If you don't want to be bothered with this step again, you can check the boxes which say: "Remember my ID and password" and "Sign me in automatically".
You are asked to give your authorization for Windows Live Photo Gallery to publish on Flickr. Press the Authorize button.

To complete the authorization process, Windows Live Photo Gallery will open a browser window with your Flickr account, where you are notified that Windows Live Essentials wants to link with Flickr.
For security reasons, you are asked how you reached this page. Click on the Next button from the box which says: "If you arrived at this page because you specifically asked Windows Live Essentials to connect to your Flickr account, click here:".

You are informed about the type of activities Windows Live Essentials will be able to perform, once you authorize it. Press "OK, I’ll authorize it".

Now you can close the browser and get back to Windows Live Photo Gallery. Press the Next button found in the Publish to Flickr dialog window.

From now onwards, the process of uploading your photos will start. If you changed your mind about uploading photos to Flickr, you can press Cancel and the procedure will stop here. However, Windows Live Photo Gallery will remain authorized to publish pictures on your Flickr account.
Publishing Pictures On Flickr
Before you can publish on Flickr, you must first give instructions on how and where your selected pictures will be published.

Select the Flickr account you want to use. The default account is the one which you just authorized. You can also add another account, following the steps detailed in the previous section.

Choose the photo set where your photos will be published. By clicking the drop-down box you see all the photo sets you have on Flickr. Here, you can choose one of the existing sets, create a new one or simply have your pictures published but not added to a photo set.

If you choose to create a new set, a dialog will show up, asking for a title and description. Complete these details and press the Create button.

The new set will appear in the list of available sets.

In the Photo size section, select the size of the photos, as they will be published in Flickr. The available options are: original size, 2048 pixels, 1600 pixels, 1024 pixels, 640 pixels.

NOTE: Flickr has an upload limit of 300MB a month for regular users (unlimited for Flickr Pro accounts). When you choose your photo size, keep in mind that the bigger the size in pixels, the bigger the space occupied on your account. For more information about Flickr’s limitations, check out this page.
Next, choose who has the permissions to view your pictures. You can set them to be: public, private (family, friends only), private (friends only), private (family only) or private (just you).

Once you are done setting all the details described above, press the Publish button. The pictures you selected are now being published on Flickr.
When the process ends, you are notified. Clicking the View button opens a browser window which shows the pictures you just published.

Conclusion
As you can see from this tutorial, the “hard" part is to authorize Windows Live Photo Gallery to publish on your Flickr account. Once this is done, publishing your photos is a few clicks away. For other interesting articles on Windows Live Photo Gallery, check out our recommendations below.
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