TIFF vs PNG

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Level 1

6 points

TIFF vs PNG

Hello Guys,

Hope your are good! Today I'm making this thread in order to understand the difference between TIFF and PNG. Theoretically, I know the characteristics of each file format. So when I want to export my images, I just want to preserve the highest possible quality for my post-publishing in web. I know about the PNG - 24 bit that its really cool format and it has lossless compression. My problem with this format is that it can't support higher color depth. Thus I choose to export my images in TIFF 16 bit. Also, I know that TIFF has a strange compression called LZW that it doesn't lose information of the image and the quality stays crystal clear, but it reduces the image's file. My question is: when I export one image as a TIFF 16 bit from Photos app, the image comes compressed with LZW compression or uncompressed (no compression)? Is it safe or wise to safe in such a method? When I read compression I feel unsafe for my image's future and I cannot understand how it is applied in one lossless image's format. Should I use another method in order to have the best possible result or is it no problem for my image this TIFF's compression procedure? For example PNG-24 uses compression like LZW? How minimise the image's memory? 🙂
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PS: I use TIFF 16 bit also for my web. Nowadays safari can read TIFF files and upload them perfectly. Moreover, I upload my TIFFs in Canon irista cloud, whereas i can found them from my phone and post them later in other social networks: the quality is really good.
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Thanks in advance!

Posted on May 30, 2018 3:37 PM

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Answer 1

leoskats Author

Level 1

6 points

Jun 2, 2018 1:52 PM in response to leoskats

Personally guys, I think that Photos app has a wide compressing selections. When you go to export an open image in the desktop, I can find that there is a selection of "none - compression" with the TIFF photo file (PHOTO A). When I'm in Photos App and go to export there is not such selection, but only if you want your TIFF be 16 bits or not (PHOTO B). I think that the export will be with no compression. Correct me, please, if I'm false! Thanks again 🙂

(Photo A)

(Photo B)

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Answer 2

leoskats Author

Level 1

6 points

Jun 3, 2018 1:53 AM in response to Malcolm J. Rayfield

Hello! So if I understood good, my computer, when I open one TIFF file with LZW compression, uncompresses it and shows the original file of the photo, like that I firstly save? Hence quality and generally every bite of the edited TIFF is the same like my first photo but only in image’s size differ? Compression (for example LZW) will be applied when I upload my TIFF in web with safari? I mean it’s only used when the image will be displayed in many users in order to load quicker? I ask because lossless compression is that only the size will be degraded and the whole image information and quality stay perfect, like the prototype image!

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