PNG Image Losing Resolution after Online Compression

[Master]

Hi...

My PNG Image (contains transparent background with some image in center) size getting increased so I decided to compress online and problem is like Original images overall canvas is 1000*1000 resolution after compressing it becomes 998*997 something like this. I tired saving with Save for Web (Legacy) as well but size seems to similar not much difference ... Original 1.67 MB with legacy save 1.63 MB

I went over nearly 5 compression site all giving me same result .

Can you please suggest how to resolve this

 

[thebestcpu]

Hi @Master
Can you include the before and after images for forum members to examine. You will get more targeted recommendations if you do.
just a suggestion
John wheeler

 

[Master]

Hi @Master
Can you include the before and after images for forum members to examine. You will get more targeted recommendations if you do.
just a suggestion
John wheeler

Hi @thebestcpu

thanks for the suggestion will do from next time I actually found out issue .

The reason I am loosing few pixels is I left some empty space on top and left side of the image as it is transparent background to be more detail I centered my image and compression sites are removing those empty spaces which are not covered .