PNG Quality When Exporting

[erikjlundy]

I'm looking to use either Quick Export as PNG or Export  > PNG to remove Metadata Bloat from some PNG files.  Do either of those options change colors in the PNG files or lose quality? 

Thanks!

[Nancy OShea]

If you use File > Export > Export As, you have options to save metadata and color space.  You also have a quality slider which directly impacts file size.

File > Export > Export As > JPG

Obviously, stepping down from a PSD to a JPG or PNG will effect image quality to some extent. 

How will the image be used?  How many total pixels (height x width)?

[r-bin]

PNG format cannot lose color or quality. It can only change the file size depending on the compression algorithms and filters (all lossless).

[rayek.elfin]

PNG format cannot lose color or quality. It can only change the file size depending on the compression algorithms and filters (all lossless).

@r-bin This is an incorrect statement. While PNG is a lossless format, saving a 24bit image as a 8bit indexed PNG file WILL lose colours and quality (for example). Saving a 32bit per channel rendered image as 16bit per channel PNG file will also have a negative impact on the full dynamic range of the original rendered image.

Neither example has anything to do with compression or filters.