That's all!Īlso google gives file name higher priority than metadata to determine a photo position in timeline. Make sure you have stable internet and your laptop doesn't sleep. Obviously it'g going to take a lot of time (1 to 2 hrs for 2000 photos). All my high quality photos were replaced with OG quality photos. I uploaded 2000 photos like this and it worked. All the High Quality photos will be replaced by Original Quality photos.Select all photos and drag all the photos and drop them in the window.But you have to do it again in your browser You might have made this in your phone/app already. Set the upload mode to original quality in settings in browser.Copy all your OG quality photos to a PC/Mac to a folder.Instructions on re-uploading High Quality to Original Quality again : We are using the above behaviour to re-upload original quality photos. So based on the 'upload mode' of the device, google chooses whether to replace the already present quality.If either of the hash are present, google knows the photo is present already.

It also calculates a hash for OG quality photo.If you upload a photo, google compresses it to 'High Quality mode' and calculates a hash for it.So the idea is different devices can have different quality to upload.

In in your browser it might be High Quality.

Google has 'upload mode' set for each device.

You can skip this section if you just want instructions. This is the reason people are complaining they can't upload OG quality once High Quality is uploaded. Posting here just in case some one needs it.įirst, here are my assumptions about how Google Photos detect duplicates and avoid re-uploading duplicates. This question is asked in this sub itself multiple times. So I digged around and the below method worked for me. I searched multiple places and the procedures available are either using 3rd party tools like EXIF or 'deleting and re-uploading' which is a PITA when your photos are mixed. This is instructions on how to re-upload photos in Original Quality when you have already uploaded them in High Quality(Storage Saver mode).

Uploaded google photos