Photos from phone and digital cameras are now much higher resolution than needed in iSee and can be reduced to a much smaller size without anyone noticing the difference. This will speed up downloads for people using iSee and reduce load on their machines, allowing either better performance or more images in your iSee sessions.
There are lots of programs that you can use to reduce the file size of images. A simple free one available to Windows users is Microsoft Photos. This will be the default app for viewing photos on your Windows device provided you haven't manually set it to something else.
To resize your photo with Microsoft Photos, first make a copy of it so that you are not editing the original, then simply double click on it to open it in Photos, or right click and choose 'Open with' and then choose 'Photos' from the list.
Once your image is open, click on the three horizontal dots to open the dropdown menu and choose 'Resize image'.
This will open up the 'Resize' panel which will give you the current Width and Height of the image in pixels along with additional information on the current and estimated future size of the image.
In terms of optimising the size of the image for iSee, if people are viewing the image in 3D mode while in iSee then the quality of the image needed is dependent on the quality of their screen. Most students will have a screen with either 1,080 or 720 vertical pixels in total, so more than this is usually a waste. So to resize, make sure 'Pixels' is selected and set the height to 720. Photos will automatically resize the Width for you.
Next select 'JPG' as the file type and set the quality slider. Reduce this to 20% for pictures and 50% for images that have a lot of text with high contrast edges.
Click ‘Save’ and select the location and file name for your reduced size file.