I'm not graphic designer, but software developer, so sorry for trivial question, but I haven't found solution on the the Web yet, and I'm new in Gimp and Photoshop. I have a *.psd file with branding logo. I'm exporting it to the *.png format with relevant size, but follow up *.png image has a thin white border around the logo. How can I remove this border to have only transparent logo image?
I'm not entirely sure how you "export to PNG" within Photoshop. There is no such option. I'll assume you are simply using the Save for Web command....
In the Save for Web dialog, ensure there is no Matte color selected (on the top right side of the Save for Web window).