Also from a FOSS perspective, PNG was built from the ground up as an open format. TIFF I think has opened up, but once upon a time it was patent encumbered to a degree, like GIF.
Upon further research I have learned that (at least in GIMP) you can save TIFFs using the same compression algorithm as PNG, and file size difference between the two will he negligible.
There may be some uses for saving pictures in TIFF format that I'm not aware of, I would do some research.
One important thing: most modern web browser support viewing PNG natively. Most web browser do NOT support TIFF, including the latest versions of Firefox and Chromium. If you want to post pictures on a website, PNG is the better choice.
Cheers,
Matt
Sent from [ProtonMail](
https://protonmail.com), Swiss-based encrypted email.
-------- Original Message --------
On Nov 12, 2017, 06:53, Matthew Crews wrote:
> TIFF is basically a bitmap format (1 pixel = 1 byte per color value, so 1 pixel = 3 bytes for a 24-bit image). TIFF does have a compression option,
>
> PNG is a lossless compression, not unlike a ZIP archive, but with an efficient compression algorithm. Though not a perfect analogy, 1 pixel <= 3 bytes. PNG also supports an alpha layer (transparency), which isn't important unless you want it to be.
>
> For example, I just took a screenshot of my desktop. Screen resolution is 1920x1080 @ 32-bit, so 8,294,400 bytes of pixel information are required (1920x1080 pixels * 4 bytes per pixel (RGB values + alpha value)) . The corresponding PNG came out to 1,969,094 bytes, whereas an equivalent TIFF with built-in compression is 2,371,201 bytes. An uncompressed TIF is 8,294,843 bytes, slightly larger than the raw pixel information.
>
> There may be use cases where TIF is a better option, but for the lay person, PNG is better.
>
> Cheers,
>
> -Matt
>
> Sent from ProtonMail, Swiss-based encrypted email.
>
>>-------- Original Message --------
>>Subject: png or tiff
>>Local Time: November 12, 2017 6:28 AM
>>UTC Time: November 12, 2017 1:28 PM
>>From: bmike1@gmail.com
>>To: PLUG
>>
>>it was recommended to me to save lossless pictures as PNG. why not TIFF?
>>
>>--
>>:-)~MIKE~(-:
>>
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