How to backup photos from 'Photos for Mac' to Flickr?

Photos for Mac is the new age photo management and sharing tool that enable users to organize, manage and share photos from your device to other websites like Facebook, Twitter and Flickr.  You can easily and directly upload and backup your photos from 'Photos for Mac' to your Flickr account

Sign in to your Flickr account
  1. Choose Apple menu > System Preferences, then click Internet Accounts.
  2. Click Flickr.
  3. Type your user name and password, then click Next.
Once signed in, the next set of instructions outline how to publish (post/backup/upload) your photos to Flickr. 

Publish your photos to Flickr
  1. Select the photos you want to publish.
  2. Click the Share button Share button in the toolbar and choose Flickr.
  3. If Photos asks you to sign in to your Flickr account, type your account ID and password, then click Sign In.
  4. In the Flickr dialog, choose options for the photos.
    - Choose where to add the photos: Click the Select Photo Set pop-up menu and choose a photo set (what Flickr calls an album).
    - To add your photos to your Flickr Photostream, choose Photostream.
    - Choose who can see the photos: Click the pop-up menu at the top right.
    - Add a title, description, and tags: Type text in the fields.
  5. Click Publish.

Your photo backup assistant

PicBackMan is a free photo/video uploader that helps you to keep your memories backed up to your favorite online services.

Users in 130+ countries have backed up.

Kip Roof

   ... an excellent job of uploading more then 300GB of photos to 2 different services

Alen Serafino testimonial I have a large collection of photos and videos to upload on some of my storage account and I was looking for an application that can do it all automatically, and that it did especially well. I found a definitive answer to my needs thanks to this amazing program and that it is constantly improving whith new fantastic features. - Alen Serafino
Gavin Whitham testimonial PicBackMan was really easy to setup and has been running for 3 days now backing up all my locally saved photos to Flickr. My photos are really valuable to me so it's great to be able to have them easily backed up to a secure location. - Gavin Whitham
Dave testimonial PicBackMan was an answer to many a prayer. How can I get this MASSIVE collection of photos onto a service that cripples uploading? PicBackMan. I uploaded approximately 85,000 photos in less than a month. It would have taken me close to a year to get all of those photos where they needed to go. Nothing short of brilliant. - Dave
Julia Alyea Farella testimonial LOVE this program! Works better than ANY other program out there that I have found to upload thousands of pictures WITH SUB-FOLDERS to SmugMug! Thank you so much for what you do! :) #happycustomer - Julia Alyea Farella
Your pictures are scattered. PicBackMan brings order to your digital memories. ...
PicBackMan automates the process of uploading pictures to multiple photo storage sites.
Top rated photo backup application. PicBackMan cnetdownload rating
It's easy, convenient and can handle thousands of pictures at once.