Currently on ipernity 'Photos' pages the following notice is shown on right margin:

"It is recommended to have GPS data in the meta data (EXIF) of the images before the initial upload."

The reason why this recommendation is given is that the Google Maps quota may become exceeded easily if many users search and use it get geolocation for already uploaded images. To avoid this it would help if more people would start to define geolocation before uploading the images.

How to do that depends on computer and software used. Here are few suggestions given. This article very likely becomes updated later on.

Allow location displayed on your ipernity settings

You need to allow GPS location displayed on your 'Photos and other content' settings before you upload new images containing the geolocation.

Choose 'YES' next to 'Automatically add the place of the shooting information if GPS info is available'.

GeoImgr

If you do not afraid to use online services, then GeoImgr is the easist solution to add geolocation onto image Exif. Because they also have to deal with more expensive Google services, you can't use location search on the map for free. But you can move the marker and zoom in on the map to get the image re-positioned.

Once you have set the position right, rename and download the image. Then upload that new version of the image to ipernity.

GeoSetter

GeoSetter is a freeware for Windows 7 and 10 or higher, and it requires Internet Explorer 10, Edge, or higher to show and change geo data and other metadata (IPTC/XMP/Exif) of image files. Do notice this does not run on older Windows versions, and IE10/Edge must be installed to work with the map on GeoSetter user interface. You can still use any browser you like to upload the images to ipernity.

Short instructions: Select image(s) you wish to add the geolocation onto. Open 'Map' tab to search and fine tune the marker position on the map. Then right click on the position marker, and click 'Assign Position to Selected Images' on opening dialog.

Visit GeoSetter web site for download.

Thanks to Berny for feedback. Berny has also written a quick how to use GeoSetter pdf doccument to get started. More instructions and tips for use may become added later.

Adobe Lightroom

If you use Lightroom, you already have tools to add geo location there.

Lightroom provides online help pages to work with map module on Lightroom classic.

When you export image(s) where GPS geolocatin has been added, make sure "Remove Location Information" is not ticked. Thanks to Colin Ashcroft for this tip.

More instructions and tips may become added later. I personally don't have Lightroom, but I will ask others to help updating this article if needed.

GIMP 2.10.10 photo editor

Even if GIMP is not your favorite photo editor, it at least is a free software alternative running on multiple operating systems (Windows, OS X, Linux). This is however the most complicated way to add geolocation onto image Exif.

Instructions:

A) First you need the map coordinates for your photo. For that there are several options. Here's one map service given as an example.

Goto GPS coordinates converter to search for the location where you took the photo. Once you have adjusted the location, you get the coordinates shown on left side of the map view.

DD (decimal degrees) format is a common format used on many web sites.

DMS (degrees, minutes, seconds) format is needed for example on GIMP editor.

B) Make sure you have latest stable GIMP 2.10.10.

C) To add geo location, go to 'Image > Metadata > Edit Metadata', and choose 'GPS' tab. You have to use keyboard to write the latitude and longitude. Copy/paste very likely does not work if you copy and paste the text from some other application. The coordinates then becomes truncated to degrees only. Then choose either west/east from prime meridian (Greenwitch) and north/south from equator.

Coordinates has to be exactly in this degrees, minutes, seconds (DMS) format:

24deg 2' 12"
61deg 28' 9"

So, decimals degrees (DD) presentation and ° symbols ain't work. If you write minutes and seconds starting with zero (e.g. 02' 09''), metadata editor drops the zero in front when saving, but that doesn't matter.

Once you have saved the location, you can reopen the metadata editor again to make sure the location became recorded correctly, including minutes and seconds.

D) Export "new image" with GPS geolocation metadata added to image Exif. Choose 'File > Export As...' to choose directory where to save. At this stage you can also choose the file format.

E) Proceed with 'Export' to open additional settings dialog. Make sure you choose 'Save Exif data', and click 'Export'. Now the saved new image contains also geolocation and is ready to become uploaded to ipernity.