Create Zip files to sell graphics

[juliak10644825]

I want to sell a series of alphabets, 26 images and 0-9 numbers, 10 images that I created. They are in png format. How do I do this. Thx [e-mail address removed]

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[Abambo]

For an alphabet I would include them into a single file. Adobe stock accepts only jpeg files, no png files.