How to create a high resolution tiny jpg circle less than 50k in size

I am using an online program called easymapmaker to show markers on a Google Earth map. the program allows you to upload your own jpg gif or ico markers in place of the standard teardrop icons. I tried creating these tiny circles in Coreldraw and saved as png files, which the program allows.

When it plots them on the map, they are circle markers with blurred edges. I need them to be sharp. This is a pro-bono mapping effort I am doing for a retirement community, so it is out of my pocket.  The Easymapmaker support simply said " I would recommend buying the small markers you want to use. Search google for something like :small circle images"

I can find free circle jpgs but don't know how to resize them or keep them from having low resolution and blurred edges. Here is the map I created - PDF

Can anyone help?

thank you.

Parents Reply
  • That's huge 1,000 pixels, 1,000 pixels is about 70% the width of my laptop.

    I am aware that 1000 pixels is huge, and I didn't state that anyone would want to render the markers on a map at 1000 x 1000 pixels.

    My point was that it's not difficult to create a PNG file smaller than 50 KB that has FAR higher resolution than should be needed for this job.

    Exactly what EasyMapMaker DOES with the custom markers that a user can upload, well, I could only guess. I've never used it.

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