Png

PNG (Portable Network Graphics) is an image file format designed to store raster graphics

Tiff

TIFF (originally standing for Tagged Image File Format) is a file format for storing images.

Approach smaller compression

Quality Example
Better

"Tiff â any bit depth any compression lossy or lossless everything including the kitchen sink â and no better than png"

from question "Where can I find a good introduction to bitmaps"

Larger

"The resulting png compression may produce a file size larger than your tiff compression"

from question "ImageMagick - Smaller resized image is a much larger file size"

Approach smaller

"The resulting file from this png approach is smaller in size than a tiff file and i guess may rescale better"

from question "Creating Crisp or sharp graphics with R for importing into PowerPoint"

Others

Quality Example
Much more

"Today png is much more popular than tiff so if you re writing files outside of your own data store png would be a more common choice and you d need to work through nsimagerep to get there"

from question "Best practice of storing and retrieving an NSImage in binary"

Smaller

"Jpg or png should get you smaller than tiff"

from question "VB.NET - Image compression"

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